Auxiliary positioning structure and gear measuring machine thereof

Abstract

The utility model discloses an auxiliary positioning structure and a gear measuring machine thereof, comprising a measuring base, one end of which is provided with a measuring mechanism; a positioning mechanism is arranged at the top of the measuring mechanism, an electric telescopic rod is arranged at the bottom of the positioning mechanism, and a jacking mechanism is arranged at the bottom of the electric telescopic rod and comprises a screw which rotates at the bottom of the electric telescopic rod in a threaded mode; the multiple limiting assemblies are inserted into the bottom of the screw rod in a staggered mode at different heights. The auxiliary assembly is arranged at the bottom of the screw. Through the arrangement mode that the positioning mechanism, the electric telescopic rod and the jacking mechanism are matched, the jacking mechanism can limit the gear on the clamping base, the limiting assemblies can press and limit the gears of different sizes, through the limiting assemblies in different directions, the gear pressing stability is conveniently improved, and the gear pressing precision is improved. And through the first ball and the second ball, friction damage to the outer wall of the gear is reduced, and the stability of gear measurement is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear measuring machines, in particular to an auxiliary positioning structure and a gear measuring machine thereof. Background Art

[0002] The gear measuring machine is a machine that can measure the profile deviation, helix deviation, pitch deviation, radial runout of involute cylindrical gears, as well as the profile deviation, pitch deviation, and radial runout of shaving cutters and gear shaping cutters. Application No. 202210357521.7 discloses a clamping structure based on a gear measuring machine, including a mounting base, a casing, an adjustable side measuring frame structure, an adjustable collecting frame structure, a longitudinal cylinder, a disassembly connecting frame structure, an upper measuring device, a movable frame, a telescopic cylinder, a transverse plate, a rotating motor, a disassembly storage frame structure, a toolbox, a transverse slide rail and a protective plate. The casing bolts are installed on the upper right side of the mounting base; the adjustable side measuring frame structure is installed on the lower left side of the inner wall of the casing; the adjustable collecting frame structure is installed on the upper side of the casing; and the longitudinal cylinder is installed on the left side of the adjustable collecting frame structure. The above invention can disassemble and assemble the measuring head, and the gear needs to rotate with the rotating disk.

[0003] When the shaftless gear is inserted into the chuck, although the groove on the gear cooperates with the matching protrusion on the chuck so that the gear can rotate with the chuck, there is a phenomenon of gear jumping up and down. The gear rotates on the chuck shaft. Due to the influence of the up and down movement of the gear, it is easy to affect the detection stability of the gear side probe. In order to prevent this phenomenon, the existing measuring machine directly sets a head on the gear to push down the gear. Due to the different sizes of gears and the different sizes of the shaft holes in the middle, the head is pressed on the rotating shaft, resulting in invalid positioning of the gear, affecting the stability of the gear rotation measurement. Utility Model Content

[0004] The purpose of the utility model is to provide an auxiliary positioning structure and a gear measuring machine thereof to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an auxiliary positioning structure and a gear measuring machine thereof, comprising: a measuring base, one end of which is provided with a measuring mechanism;

[0006] The top of the measuring mechanism is provided with a positioning mechanism, the bottom of the positioning mechanism is horizontally slidably connected with an electric telescopic rod, the bottom of the electric telescopic rod is provided with a jacking mechanism, and the jacking mechanism includes:

[0007] A screw rod, wherein the screw rod thread is rotated at the bottom of the electric telescopic rod;

[0008] A plurality of limit assemblies, wherein the plurality of limit assemblies are interlaced and inserted at the bottom of the screw at different heights;

[0009] The auxiliary component is arranged at the bottom of the screw.

[0010] Preferably, the positioning mechanism comprises:

[0011] A top seat, the top seat being fixed to the top of the measuring mechanism;

[0012] A rectangular groove, wherein the rectangular groove is formed on the lower surface of the top seat;

[0013] A screw rod, the two ends of which are rotatably interlaced and connected with the two ends of the top seat through bearings respectively;

[0014] A slider, wherein the slider is threadedly inserted into the outer wall of the screw rod, the slider is slidably connected with the inner cavity of the rectangular groove, and the electric telescopic rod is fixed to the bottom end of the slider;

[0015] A rotating disk is fixed to one end of the screw rod.

[0016] Preferably, the limiting component comprises:

[0017] L-shaped rods, wherein a plurality of L-shaped rods are respectively connected to the bottom of the screw rod at different heights at different angles and slidingly interspersed;

[0018] A plurality of nuts, each of which is connected to the outer wall of the L-shaped rod through a thread, and two of the nuts are disposed on both sides of the outer wall of the screw rod in an opposite state through a gasket;

[0019] The first ball is rotatably embedded in the bottom of the L-shaped rod.

[0020] Preferably, the auxiliary components include:

[0021] A positioning groove, wherein the positioning groove is formed at the bottom of the screw;

[0022] A T-shaped rod, the T-shaped rod being slidably inserted into the inner cavity of the positioning groove;

[0023] A compression spring, wherein the compression spring is sleeved on the outer wall of the T-shaped rod;

[0024] A lifting block, wherein the lifting block is fixed to the bottom end of the T-shaped rod, the compression spring is fixed between the screw rod and the inner wall of the lifting block, and the lifting block is slidably connected with the bottom of the screw rod;

[0025] The second ball is rotatably embedded in the bottom of the lifting block.

[0026] Preferably, the measuring mechanism comprises:

[0027] A bearing column, wherein the bearing column is fixed to one end of the measuring base;

[0028] A probe is slidable on one side of the bearing column.

[0029] Preferably, the inner cavity of the measuring base is slidably connected with a bearing mechanism, and the bearing mechanism comprises:

[0030] A card seat, wherein the card seat is opened in the inner cavity of the measuring base;

[0031] A rotating shaft is rotatably inserted into the top of the card seat.

[0032] Another object of the utility model is to provide a gear measuring machine, wherein the computer case includes the auxiliary positioning structure

[0033] Technical effects and advantages of the utility model:

[0034] The utility model adopts a positioning mechanism, an electric telescopic rod and a pushing mechanism that cooperate with each other, so that the pushing mechanism can move with the card seat, so that the pushing mechanism can limit the gear on the card seat, and the limiting component can press down and limit the gears of different sizes. The limiting components in different directions can improve the stability of the gear pressing, and the first ball and the second ball can reduce the friction damage to the outer wall of the gear, thereby improving the stability of gear measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0036] Figure 2 It is a front sectional structural schematic diagram of the top seat of the utility model.

[0037] Figure 3 For this utility model Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0038] In the figure: 1. measuring base; 2. measuring mechanism; 21. bearing column; 22. measuring head; 3. positioning mechanism; 31. top seat; 32. rectangular groove; 33. screw rod; 34. slider; 35. rotating disk; 4. electric telescopic rod; 5. pushing mechanism; 51. screw rod; 52. limiting assembly; 521. L-shaped rod; 522. nut; 523. first ball; 53. auxiliary assembly; 531. positioning groove; 532. T-shaped rod; 533. compression spring; 534. lifting block; 535. second ball; 6. bearing mechanism; 61. base; 62. rotating shaft. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] The utility model provides Figure 1-3 An auxiliary positioning structure and a gear measuring machine thereof are shown, comprising: a measuring base 1, a measuring mechanism 2 is arranged at one end of the measuring base 1, the measuring mechanism 2 comprises: a bearing column 21 and a probe 22, the bearing column 21 is fixed at one end of the measuring base 1, the probe 22 slides on one side of the bearing column 21, and the probe 22 is an existing measuring structure, so that it can stably measure the gear;

[0041] Furthermore, a positioning mechanism 3 is provided at the top of the measuring mechanism 2, and the positioning mechanism 3 includes: a top seat 31, a rectangular groove 32, a screw rod 33, a slider 34 and a rotating disk 35. The top seat 31 is fixed to the top of the measuring mechanism 2, and the top seat 31 is fixed to the top of the bearing column 21. The rectangular groove 32 is opened on the lower surface of the top seat 31, and the two ends of the screw rod 33 are rotatably inserted and connected with the two ends of the top seat 31 through bearings respectively. The slider 34 is threadedly inserted into the outer wall of the screw rod 33. The slider 34 is a rectangular structure matched with the rectangular groove 32. The slider 34 is slidably connected with the inner cavity of the rectangular groove 32, so that the slider 34 can only slide horizontally in the inner cavity of the rectangular groove 32. The rotating disk 35 is fixed to one end of the screw rod 33. Through the rotation of the rotating disk 35, the screw rod 33 can stably rotate in the inner cavity of the rectangular groove 32, and the position of the slider 34 is limited by the rectangular groove 32, so that the slider 34 can slide stably.

[0042] Furthermore, the bottom of the positioning mechanism 3 is slidably connected with an electric telescopic rod 4 in a horizontal direction, the electric telescopic rod 4 is fixed to the bottom end of the slider 34, and a push mechanism 5 is provided at the bottom of the electric telescopic rod 4, and the electric telescopic rod 4 is used to push the push mechanism 5, so that the push mechanism 5 can push the gears of different thicknesses.

[0043] Furthermore, the jacking mechanism 5 includes: a screw rod 51, a plurality of limit assemblies 52 and an auxiliary assembly 53. The top of the screw rod 51 is a threaded structure that matches the telescopic end of the electric telescopic rod 4. The screw rod 51 is threadedly rotated at the bottom of the electric telescopic rod 4. The plurality of limit assemblies 52 are interlaced at different heights at the bottom of the screw rod 51. The auxiliary assembly 53 is arranged at the bottom of the screw rod 51.

[0044] Specifically, the limiting assembly 52 includes: an L-shaped rod 521, a plurality of nuts 522, and a first ball 523. One end of the L-shaped rod 521 is a threaded structure, and the height of the L-shaped rod 521 is different. The plurality of L-shaped rods 521 are respectively slidably interlaced with the bottom of the screw rod 51 at different heights at different angles, so that the plurality of L-shaped rods 521 can press different parts of the gear. The plurality of nuts 522 are respectively threadedly interlaced with the outer wall of the L-shaped rod 521. The two nuts 522 are respectively arranged on both sides of the outer wall of the screw rod 51 in a relative state through gaskets. The position of the screw rod 51 on the screw rod 51 is stabilized by the nuts 522. The first ball 523 is rotatably embedded in the bottom of the L-shaped rod 521, so that the bottom of the first ball 523 can roll with the upper surface of the gear, which is convenient for reducing friction damage to the upper surface of the gear.

[0045] Specifically, the auxiliary component 53 includes: a positioning groove 531, a T-shaped rod 532, a compression spring 533, a lifting block 534 and a second ball 535. The positioning groove 531 is opened at the bottom of the screw rod 51, the top of the positioning groove 531 is a rectangular structural groove, the top of the T-shaped rod 532 is a rectangular plate structure matched with the inner cavity of the positioning groove 531, the T-shaped rod 532 slides and inserts into the inner cavity of the positioning groove 531, the compression spring 533 is sleeved on the outer wall of the T-shaped rod 532, and the lifting block 534 is fixed to the T-shaped rod 5 At the bottom end of the screw 51, the compression spring 533 is fixed between the inner wall of the screw 51 and the lifting block 534. The lifting block 534 is slidably inserted and connected with the bottom of the screw 51. The second ball 535 is rotatably embedded in the bottom of the lifting block 534. Through the elasticity of the compression spring 533, the lifting block 534 can be lifted and slid at the bottom of the screw 51, so that the second ball 535 at the bottom of the lifting block 534 can push the shaft rod inserted by the gear, so that the screw 51 will not cause pushing damage to the lifting block 534.

[0046] Furthermore, the inner cavity of the measuring base 1 is slidably connected to a carrying mechanism 6, and the carrying mechanism 6 includes: a holder 61 and a rotating shaft 62, the holder 61 is opened in the inner cavity of the measuring base 1, the rotating shaft 62 is rotatably inserted in the top of the holder 61, and the bottom of the rotating shaft 62 is connected to a rotating motor to facilitate the rotating shaft 62 to stably rotate on the holder 61, and a shaft is fixed on the holder 61, and the shaft can be inserted into the gear so that the gear can rotate stably following the rotating shaft 62.

[0047] like Figure 1 As shown, this embodiment provides a gear measuring machine, which includes the above-mentioned auxiliary positioning structure.

[0048] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An auxiliary positioning structure, include: A measuring base (1), wherein a measuring mechanism (2) is provided at one end of the measuring base (1); The invention is characterized in that: a positioning mechanism (3) is arranged at the top of the measuring mechanism (2); the bottom of the positioning mechanism (3) is connected to an electric telescopic rod (4) in a horizontal sliding direction; a pushing mechanism (5) is arranged at the bottom of the electric telescopic rod (4); and the pushing mechanism (5) comprises: A screw rod (51), wherein the screw rod (51) is threadedly rotated on the bottom of the electric telescopic rod (4); A plurality of limiting components (52), wherein the plurality of limiting components (52) are interlaced and inserted at the bottom of the screw rod (51) at different heights; An auxiliary component (53), wherein the auxiliary component (53) is arranged at the bottom of the screw rod (51).

2. An auxiliary positioning structure according to claim 1, It is characterized in that The positioning mechanism (3) comprises: A top seat (31), wherein the top seat (31) is fixed to the top of the measuring mechanism (2); A rectangular groove (32), wherein the rectangular groove (32) is formed on the lower surface of the top seat (31); A screw rod (33), the two ends of which are rotatably interlaced and connected to the two ends of the top seat (31) through bearings respectively; A slider (34), wherein the slider (34) is threadedly inserted into the outer wall of the screw rod (33), the slider (34) is slidably connected to the inner cavity of the rectangular groove (32), and the electric telescopic rod (4) is fixed to the bottom end of the slider (34); A rotating disk (35) is fixed to one end of the screw rod (33).

3. An auxiliary positioning structure according to claim 2, It is characterized in that The limiting component (52) comprises: L-shaped rods (521), wherein a plurality of L-shaped rods (521) are respectively slidably interlaced and connected with the bottom of the screw rod (51) at different heights at different angles; A plurality of nuts (522), wherein the plurality of nuts (522) are respectively connected to the outer wall of the L-shaped rod (521) by thread insertion, and two of the nuts (522) are respectively arranged on two sides of the outer wall of the screw rod (51) in an opposing state through a gasket; A first rolling ball (523), wherein the first rolling ball (523) is rotatably embedded in the bottom of the L-shaped rod (521).

4. The auxiliary positioning structure according to claim 2, It is characterized in that The auxiliary component (53) comprises: A positioning groove (531), wherein the positioning groove (531) is formed at the bottom of the screw rod (51); A T-shaped rod (532), wherein the T-shaped rod (532) is slidably inserted into the inner cavity of the positioning groove (531); A compression spring (533), wherein the compression spring (533) is sleeved on the outer wall of the T-shaped rod (532); A lifting block (534), wherein the lifting block (534) is fixed to the bottom end of the T-shaped rod (532), the compression spring (533) is fixed between the screw rod (51) and the inner wall of the lifting block (534), and the lifting block (534) is slidably interlaced with the bottom of the screw rod (51); The second rolling ball (535) is rotatably embedded in the bottom of the lifting block (534).

5. An auxiliary positioning structure according to claim 4, It is characterized in that The measuring mechanism (2) comprises: A bearing column (21), wherein the bearing column (21) is fixed to one end of the measuring base (1); A measuring head (22), wherein the measuring head (22) slides on one side of the supporting column (21).

6. The auxiliary positioning structure according to claim 2, It is characterized in that The inner cavity of the measuring base (1) is slidably connected to a bearing mechanism (6), and the bearing mechanism (6) comprises: A card seat (61), wherein the card seat (61) is disposed in the inner cavity of the measuring base (1); A rotating shaft (62) is rotatably inserted into the top of the holder (61).

7. A gear measuring machine, It is characterized in that The gear measuring machine comprises the auxiliary positioning structure as described in any one of claims 1-6.

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