CN210290645U

CN210290645U - Cam and cam mechanism

Info

Publication number: CN210290645U
Application number: CN201920940331.1U
Authority: CN
Inventors: 不公告发明人
Original assignee: Wuxi Lead Intelligent Equipment Co Ltd
Current assignee: Wuxi Lead Intelligent Equipment Co Ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-04-10
Anticipated expiration: 2029-06-20

Abstract

The utility model discloses a cam and cam mechanism, this cam set up in the frame for guide follower motion, the cam includes: the supporting block comprises a bottom surface and a first adjusting surface, and the bottom surface is used for being connected with the rack; the guide block comprises a guide surface and a second adjusting surface, the guide surface is used for guiding the driven part to move, and the second adjusting surface is attached to the first adjusting surface; the guide block is matched with the first adjusting surface through the second adjusting surface to realize sliding relative to the supporting block so as to adjust the distance between the guide surface and the bottom surface. Through the mode, the distance between the guide surface and the bottom surface of the cam can be adjusted, so that the height of the cam is adjusted, and the self-adaptability of the cam is improved.

Description

Cam and cam mechanism

Technical Field

The utility model relates to a mechanical transmission technical field especially relates to a cam and cam mechanism.

Background

The cam is a guiding means, and the guided mechanism is connected with the cam in a sliding way through a roller and can move along the cam under the driving of the driving mechanism. In various machines, in particular automatic machines and automatic control devices, various types of cam mechanisms are widely applied, have quick response and simple and compact mechanisms, can meet various complex motion requirements, and have irreplaceability in production.

In some devices with high guiding precision requirements, the position of the cam is required to be higher, and only if the installation position of the cam is accurate, correct guiding can be realized, so that accurate operation of a guiding mechanism is ensured. Generally, a machined cam is fixed, and the height of the cam is difficult to adjust, and under the requirement of high precision, a height difference may exist between the integrated cam and a track preset by a guided mechanism, and the cam is difficult to adjust, so that the self-adaptability of the cam is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem of main solution provides a cam and cam mechanism, can adjust the distance between its guide surface and the bottom surface to the height of adjustment cam, thereby improve the adaptability of cam.

In order to solve the technical problem, the utility model discloses a technical scheme be provide a cam, the cam sets up in the frame for guide follower motion, the cam includes: the supporting block comprises a bottom surface and a first adjusting surface, and the bottom surface is used for being connected with the rack; the guide block comprises a guide surface and a second adjusting surface, the guide surface is used for guiding the driven piece to move, and the second adjusting surface is attached to the first adjusting surface; the guide block is matched with the first adjusting surface through the second adjusting surface to realize sliding relative to the supporting block so as to adjust the distance between the guide surface and the bottom surface.

According to the utility model discloses a concrete implementation mode, the cam includes: the connecting block is respectively connected with the supporting block and the guide block; the connecting block is fixedly connected with one of the supporting block and the guiding block, and the connecting block is connected with the other of the supporting block and the guiding block through a first mounting hole and a second mounting hole which are matched with each other, wherein the first mounting hole is a kidney-shaped hole, and the first mounting hole is arranged along the extending direction parallel to the first adjusting surface.

According to a specific embodiment of the present invention, the guide block comprises a first movable block and a second movable block, the first movable block is located between the supporting block and the second movable block; the first movable block comprises a second adjusting surface and a third adjusting surface, the second movable block comprises a fourth adjusting surface and a guide surface, and the fourth adjusting surface is attached to the third adjusting surface; the first movable block is matched with the first adjusting surface through the second adjusting surface to realize sliding relative to the supporting block, and when the first movable block slides relative to the supporting block, the third adjusting surface is matched with the fourth adjusting surface to enable the second movable block to be close to or far away from the supporting block, so that the distance between the guide surface and the bottom surface is adjusted.

According to the utility model discloses a concrete implementation mode, the cam includes: the connecting block is respectively connected with the supporting block, the first movable block and the second movable block; the connecting block is connected with the first movable block through a first mounting hole and a second mounting hole which are matched with each other, wherein the first mounting hole is a waist-shaped hole, and the first mounting hole is arranged along the extending direction which is parallel to the first adjusting surface or the second adjusting surface; the connecting block is fixedly connected with one of the supporting block and the second movable block, and the connecting block is connected with the other of the supporting block and the second movable block through a third mounting hole and a fourth mounting hole which are matched with each other, wherein the third mounting hole is a kidney-shaped hole, and the third mounting hole is arranged in a direction parallel to the moving direction of the second movable block when the second movable block is close to or far away from the supporting block.

According to the utility model discloses a concrete implementation mode, the cam includes: the guide block is fixedly arranged on the side face of one of the supporting block and the second movable block, the guide block comprises a clamping groove which is formed in a concave mode along the moving direction when the second movable block is close to or far away from the supporting block, and the side face of the other of the supporting block and the second movable block is inserted into the clamping groove and can slide in the clamping groove.

According to the utility model discloses a concrete implementation mode, the guide block with the second movable block or the supporting shoe is connected through mutually supporting fifth mounting hole and sixth mounting hole, wherein, the fifth mounting hole is waist type hole, fifth mounting hole along being on a parallel with the second movable block is close to or keeps away from moving direction setting during the supporting shoe.

According to a specific embodiment of the present invention, the supporting block comprises an adjusting block and a bottom block, the adjusting block is located between the guiding block and the bottom block; the adjusting block comprises a first adjusting surface and a fifth adjusting surface, the bottom block comprises a sixth adjusting surface and the bottom surface, and the fifth adjusting surface is attached to the sixth adjusting surface; the adjusting block is matched with the sixth adjusting surface through the fifth adjusting surface to realize sliding relative to the bottom block, so that the relative position between the guide surface and the bottom surface is adjusted under the condition that the distance between the guide surface and the bottom surface is kept unchanged.

According to the utility model discloses a concrete implementation mode, the regulating block with the bottom block is connected through the seventh mounting hole and the eighth mounting hole of mutually supporting, wherein, the seventh mounting hole is waist type hole, the seventh mounting hole is along being on a parallel with the regulating block is relative the gliding direction setting of bottom block.

According to the utility model discloses a concrete implementation mode, the cam still includes: the recording component comprises a dial indicator, a mounting plate and a top block; the top block is fixedly arranged on one of the supporting block and the guiding block, the mounting plate is fixedly arranged on the other one of the supporting block and the guiding block, the dial indicator is arranged on the mounting plate and comprises a contact end, and the contact end is used for being abutted to the top block so as to record the distance between the mounting plate and the top block.

In order to solve the above technical problem, the utility model discloses an another technical scheme provides a cam mechanism, include: a frame and a follower; the cam comprises a bottom surface and a guide surface, the cam is connected with the rack through the bottom surface, the cam guides the follower to move through the guide surface, and the cam is the cam.

The utility model has the advantages that: be different from prior art's condition, the cam forms through supporting shoe and guide block concatenation, the supporting shoe includes bottom surface and first regulation face, the bottom surface is used for being connected with the frame, the guide block includes guide surface and second regulation face, the guide surface is used for guiding the follower motion, the second regulation face is laminated with first regulation face mutually, realize the relative supporting shoe of guide block through the cooperation of second regulation face and first regulation face and slide, thereby can adjust the distance between guide surface and the bottom surface, adjust the height of cam promptly, thereby can improve the adaptability of cam.

Drawings

Fig. 1 is a schematic front view of a first embodiment of a cam according to the present invention;

fig. 2 is a schematic front view of a second embodiment of a cam according to the present invention;

FIG. 3 is a perspective view of the cam of FIG. 2;

fig. 4 is a schematic structural diagram of an embodiment of a cam mechanism provided in the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

The cam is a guide mechanism, the guided driven piece is connected with the cam in a sliding mode, the driven piece can move along the cam, but in some devices with high guide precision requirements, the position of the cam is high in requirement, and only when the installation position of the cam is accurate, correct guide of the driven piece can be achieved, and accurate operation of the driven piece is guaranteed. The cam of this application sets up in the frame for guide follower motion. Referring to fig. 1, fig. 1 is a schematic front view of a cam according to a first embodiment of the present invention. The cam 10 in this embodiment includes a support block 100 and a guide block 102; the supporting block 100 comprises a bottom surface 1000 and a first adjusting surface 1002, wherein the bottom surface 1000 is used for being fixedly connected with the rack; the guide block 102 is slidably arranged on the support block 100, the guide block 102 comprises a guide surface 1020 and a second adjusting surface 1022, the guide surface 1020 is used for guiding the follower to move, and the second adjusting surface 1022 is attached to the first adjusting surface 1002; the guide block 102 is configured to slide relative to the support block 100 by the second adjustment surface 1022 matching with the first adjustment surface 1002, so as to adjust the distance between the guide surface 1020 and the bottom surface 1000. Specifically, the first adjusting surface 1002 and the second adjusting surface 1022 are inclined surfaces arranged in parallel, so that when the second adjusting surface 1022 moves upward along the inclined surface of the first adjusting surface 1002, the guide surface 1020 is raised relative to the bottom surface 1000; when the second adjustment surface 1022 moves down the inclined surface of the first adjustment surface 1002, the guide surface 1020 descends relative to the bottom surface 1000.

It is understood that the bottom surface 1000 and the guiding surface 1020 may be parallel or non-parallel, wherein the guiding surface 1020 is a track that the guided follower needs to move, and the guiding surface 1020 may be a horizontal surface or a slant surface, and the follower slidably contacts with the guiding surface 1020 and can move along the guiding surface 1020. In the present invention, the distance between the guide surface 1020 of the guide block 102 and the bottom surface 1000 of the support block 100, which is adjusted by sliding the guide block 102 relative to the support block 100, is actually the height between any point on the guide surface 1020 and the bottom surface 1000, and since the bottom surface 1000 is fixedly connected to the frame, the distance between the guide surface 1020 and the bottom surface 1000, that is, the distance between the guide surface 1020 and the frame, is adjusted, thereby adjusting the height of the cam 10 relative to the frame. Specifically, taking the parallel between the bottom surface 1000 and the guide surface 1020 as an example, one of the first adjusting surface 1002 and the second adjusting surface 1022 is a downward surface, and the other is an upward surface, as shown in fig. 1, the height of the first adjusting surface 1002 decreases from left to right, the length of the supporting block 100 in the vertical direction decreases, the height of the second adjusting surface 1022 decreases from left to right, but the length of the guide block 102 in the vertical direction increases, and the first adjusting surface 1002 is parallel to the second adjusting surface 1022. When one of the supporting block 100 or the guide block 102 moves to the left with respect to the other, the guide surface 1020 rises with respect to the bottom surface 1000, i.e., the distance between the guide surface 1020 and the bottom surface 1000 becomes larger, and when moving to the right, the guide surface 1020 falls with respect to the bottom surface 1000, i.e., the distance between the guide surface 1020 and the bottom surface 1000 becomes smaller.

In this embodiment, the cam 10 is formed by splicing the supporting block 100 and the guide block 102, the supporting block 100 includes a bottom surface 1000 and a first adjusting surface 1002, because the supporting block 100 may be fixedly connected to the frame through the bottom surface 1000, that is, the supporting block 100 is fixed with respect to the follower, while the guide block 102 is slidably disposed on the supporting block 100, and the guide block 102 includes a guide surface 1020 and a second adjusting surface 1022, the cam 10 of the present application may adjust the height of the guide surface 1020 with respect to the frame by sliding the guide block 102 with respect to the supporting block 100, specifically, since the second adjusting surface 1022 is attached to the first adjusting surface 1002, the sliding of the guide block 102 with respect to the supporting block 100 may be achieved by matching the second adjusting surface 1022 with the first adjusting surface 1002, so that the adaptability of the cam 10 is high.

Further, the cam 10 further comprises a connecting block 104, and the connecting block 104 is respectively connected with the supporting block 100 and the guiding block 102; specifically, the connecting block 104 is fixedly connected to one of the supporting block 100 and the guiding block 102, and the connecting block 104 is connected to the other of the supporting block 100 and the guiding block 102 through a first mounting hole 1040 and a second mounting hole 1042 which are matched with each other, wherein the first mounting hole 1040 is a kidney-shaped hole, and the first mounting hole 1040 is arranged in an extending direction parallel to the first adjusting surface 1002.

As shown in fig. 1, in the embodiment, one end of the connecting block 104 is fixedly connected to the supporting block 100, the other end of the connecting block 104 is provided with a first mounting hole 1040, and the guide block 102 is provided with a second mounting hole 1042 at a position corresponding to the first mounting hole 1040, because the first mounting hole 1040 is a waist-shaped hole, the opening direction of the first mounting hole 1040 is along an extending direction parallel to the first adjusting surface 1002 and the second adjusting surface 1022, and the second mounting hole 1042 can be a screw hole, when the height of the cam 10 is adjusted, the first mounting hole 1040 and the second mounting hole 1042 are loosened, so that the supporting block 100 and the guide block 102 can slide relatively. Further, in order to ensure that the second mounting holes 1042 can be always exposed in the first mounting hole 1040, a plurality of second mounting holes 1042 may be disposed at intervals along the extending direction of the first adjusting surface 1002 or the second adjusting surface 1022, so that when the first adjusting surface 1002 and the second adjusting surface 1022 slide relative to each other, the second mounting holes 1042 are always exposed in the first mounting hole 1040. Adjusting the cam 10 to a desired height, locking the first and

second mounting holes

1040 and 1042, the support block 100 and guide block 102 are secured. Of course, in other embodiments, the first mounting hole 1040 may be formed on the guide block 102, and the corresponding second mounting hole 1042 is formed on the support block 100; in addition, one end of the connecting block 104 may be fixedly connected to the guide block 102, and the other end of the connecting block 104 is connected to the supporting block 100 through the first mounting hole 1040 and the second mounting hole 1042 which are matched with each other; and one or more connecting blocks 104 can be arranged according to actual needs to better fix the supporting block 100 and the guiding block 102 and ensure the guiding stability of the cam 10.

In a specific application scenario, the first mounting hole 1040 and the second mounting hole 1042 can be fixed by bolts, when the distance between the guide surface 1020 of the guide block 102 and the bottom surface 1000 of the support block 100 needs to be adjusted, the bolts between the first mounting hole 1040 and the second mounting hole 1042 are firstly loosened, so that the second adjustment surface 1022 and the first adjustment surface 1002 slide relatively, when the guide block 102 slides to a certain position relative to the support block 100 through the cooperation of the second adjustment surface 1022 and the first adjustment surface 1002, the guide surface 1020 and the bottom surface 1000 reach a required distance, that is, the guide surface 1020 is adjusted to a required height, and then the bolts are inserted into the first mounting hole 1040 and the second mounting hole 1042 and locked, so that the cam 10 can be fixed.

Further, a plurality of second mounting holes 1042 may be formed on the guide block 102 or the support block 100 or the connection block 104 along a direction parallel to the first adjustment surface 1002 and the second adjustment surface 1022, so as to ensure that at least one second mounting hole 1042 is exposed in the first mounting hole 1040.

Further, the cam 10 further comprises a recording assembly 106, wherein the recording assembly 106 comprises a dial indicator 1060, a mounting plate 1062 and a top block 1064; the top block 1064 is fixedly disposed on one of the supporting block 100 and the guiding block 102, the mounting plate 1062 is fixedly disposed on the other of the supporting block 100 and the guiding block 102, the dial indicator 1060 is disposed on the mounting plate 1062, the dial indicator 1060 includes an abutting end 10600, and the abutting end 10600 is used for abutting against the top block 1064 to record a distance between the mounting plate 1062 and the top block 1064.

As shown in fig. 1, in the present embodiment, the top block 1064 is fixedly disposed on the supporting block 100, the mounting plate 1062 is fixedly disposed on the guiding block 102, and the dial indicator 1060 is disposed on the mounting plate 1062; it can be understood that, taking the case that the surface of the top block 1064 abutted by the abutting end 10600 is parallel to the bottom surface 1000, and the abutting end 10600 is perpendicular to the surface abutted by the abutting end 10600, when the guide block 102 is located at the first position relative to the support block 100, the dial indicator 1060 abuts against the top block 1064 through the abutting end 10600, and can record the distance L1 between the mounting plate 1062 and the top block 1064, and when the guide block 102 is located at the second position relative to the support block 100, the dial indicator 1060 abuts against the top block 1064 through the abutting end 10600, and can record the distance L2 between the mounting plate 1062 and the top block 1064, and at this time, the difference between L1 and L2 is calculated, that is, the value adjusted by the distance between the guide surface 1020 and the bottom surface 1000 when the guide block 102 slides from the first position to the second position relative to the support block 100 through the cooperation of the second adjustment surface 1022 and the first adjustment surface 1002. Therefore, the distance between the mounting plate 1062 and the top block 1064 recorded by the dial indicator 1060 can reflect the relative position of the guide block 102 and the support block 100 corresponding to the distance, so in practical applications, for example, by sliding the second adjustment surface 1022 relative to the first adjustment surface 1002, when the distance displayed by the dial indicator 1060 is L1, it can be said that the guide block 102 is located at the first position relative to the support block 100, and thus the distance between the guide surface 1020 and the bottom surface 1000 can be directly adjusted to a desired size according to the distance recorded by the dial indicator 1060. Of course, in other embodiments, the top block 1064 may be fixedly disposed on the guide block 102, and correspondingly, the mounting plate 1062 is fixedly disposed on the support block 100.

Referring to fig. 2 and fig. 3, wherein fig. 2 is a schematic front view structure diagram of a cam according to a second embodiment of the present invention, and fig. 3 is a schematic perspective structure diagram of the cam of fig. 2. The cam 20 in the present embodiment includes a support block 200 and a guide block 202; the supporting block 200 includes a bottom surface 2000 and a first adjusting surface 2002, the bottom surface 2000 is used for being fixedly connected with the frame, and the guiding block 202 is slidably disposed on the supporting block 200. Unlike the first embodiment, the guide block 202 includes a first movable block 2020 and a second movable block 2022, the first movable block 2020 being located between the support block 200 and the second movable block 2022; the first movable block 2020 comprises a second adjusting surface 20200 and a third adjusting surface 20202, the second movable block 2022 comprises a fourth adjusting surface 20220 and a guiding surface 20222, the fourth adjusting surface 20220 is attached to the third adjusting surface 20202, and the second movable block 2022 is slidably disposed on the first movable block 2020; the first movable block 2020 is matched with the first adjusting surface 2002 through the second adjusting surface 20200 to slide relative to the supporting block 200, and when the first movable block 2020 slides relative to the supporting block 200, the third adjusting surface 20202 is matched with the fourth adjusting surface 20220 to make the second movable block 2022 approach or separate from the supporting block 200, so as to adjust the distance between the guiding surface 20222 and the bottom surface 2000. Further different from the first embodiment, in this embodiment, the relative movement between the first adjusting surface 2002 and the second adjusting surface 20200 is not used for adjusting the distance between the guide surface 20222 and the bottom surface 2000, but only for achieving the relative movement between the third adjusting surface 20202 and the fourth adjusting surface 20220 (described in detail below). Therefore, the first adjusting surface 2002 and the second adjusting surface 20200 may be parallel inclined surfaces or horizontal surfaces, and the third adjusting surface 20202 and the fourth adjusting surface 20220 are parallel inclined surfaces; alternatively, the first adjusting surface 2002 and the second adjusting surface 20200 are inclined surfaces disposed in parallel, and the third adjusting surface 20202 and the fourth adjusting surface 20220 may be inclined surfaces disposed in parallel or horizontal surfaces. It is understood that, when the first adjusting surface 2002 and the second adjusting surface 20200 are parallel inclined surfaces, and the third adjusting surface 20202 and the fourth adjusting surface 20220 are also parallel inclined surfaces, the inclined surfaces of the four surfaces may be parallel or not parallel to each other, and the adjustment of the distance between the guide surface 20222 and the bottom surface 2000 can be realized.

In this embodiment, the cam 20 is formed by splicing a supporting block 200, a first movable block 2020 and a second movable block 2022, the supporting block 200 includes a bottom surface 2000 and a first adjusting surface 2002, because the supporting block 200 can be fixedly connected to the frame through the bottom surface 2000, that is, the supporting block 200 is fixed with respect to the driven member, the first movable block 2020 is slidably connected to the supporting block 200, and the first movable block 2020 includes a second adjusting surface 20200 and a third adjusting surface 20202, so that the first movable block 2020 can slide with respect to the supporting block 200, specifically, since the second adjusting surface 20200 is attached to the first adjusting surface 2002, the first movable block 2020 can slide with respect to the supporting block 200 by matching the second adjusting surface 20200 with the first adjusting surface 2002; moreover, since the second movable block 2022 includes the fourth adjusting surface 20220 and the guiding surface 20222, and the fourth adjusting surface 20220 is attached to the third adjusting surface 20202, when the first movable block 2020 slides relative to the supporting block 200, the first movable block 2020 can also slide relative to the second movable block 2022; it can be understood that, when the first movable block 2020 is configured to slide relative to the supporting block 200 by the second adjusting surface 20200 being engaged with the first adjusting surface 2002, the first movable block 2020 may simultaneously drive the second movable block 2022 to approach or separate from the supporting block 200 by the third adjusting surface 20202 being engaged with the fourth adjusting surface 20220, so as to adjust the distance between the guiding surface 20222 and the bottom surface 2000. Because the cam 20 guides the follower to move through the guide surface 20222, when the distance between the guide surface 20222 and the bottom surface 2000 deviates from the preset position of the follower to be guided, the first movable block 2020 can slide relative to the supporting block 200 to drive the second movable block 2022 to approach or separate from the supporting block 200, and when the second movable block 2022 approaches or separates from the supporting block 200, the distance between the guide surface 20222 of the second movable block 2022 and the bottom surface 2000 of the supporting block 200 is correspondingly reduced or increased, so that the height of the cam 20 is changed, and the adaptability of the cam 20 is high.

Further, the cam 20 includes a connection block 204, and the connection block 204 is connected to the support block 200, the first movable block 2020, and the second movable block 2022, respectively; specifically, the connecting block 204 is connected to the first moving block 2020 through a first mounting hole 2040 and a second mounting hole 2042 which are matched with each other, wherein the first mounting hole 2040 is a kidney-shaped hole, and the first mounting hole 2040 is arranged along an extending direction parallel to the first adjusting surface 2002 or the second adjusting surface 20200; the connecting block 204 is fixedly connected to one of the supporting block 200 and the second movable block 2022, and the connecting block 204 is connected to the other of the supporting block 200 and the second movable block 2022 through a third mounting hole 2044 and a fourth mounting hole 2046 which are matched with each other, wherein the third mounting hole 2044 is a kidney-shaped hole, and the third mounting hole 2044 is arranged in parallel to the moving direction of the second movable block 2022 when approaching or departing from the supporting block 200.

As shown in fig. 2, in this embodiment, one end of the connecting block 204 is fixedly connected to the supporting block 200, the first movable block 2020 is provided with a second mounting hole 2042, and the connecting block 204 is provided with a first mounting hole 2040 at a position corresponding to the second mounting hole 2042, because the first mounting hole 2040 is a kidney-shaped hole, the first mounting hole 2040 is provided along an extending direction parallel to the first adjusting surface 2002 or the third adjusting surface 20202, specifically, the extending direction of the first mounting hole 2040 is a moving direction of the first movable block 2020 relative to the supporting block 200 or a moving direction of the second movable block 2022 relative to the first movable block 2020, the second mounting hole 2042 may be a screw hole, the second mounting hole 2042 is exposed in the first mounting hole 2040, and the first mounting hole 2040 and the second mounting hole 2042 are locked or unlocked, so that the first movable block 2020 and the supporting block 200 are fixed or released. When the height of the cam 20 is adjusted, the first and

second mounting holes

2040 and 2042 are released, so that the first movable block 2020 and the support block 200 can slide relative to each other. Further, in order to ensure that the second mounting hole 2042 can be always exposed in the first mounting hole 2040, a plurality of second mounting holes 2042 may be provided at intervals along the extending direction of the first adjusting surface 2002 or the third adjusting surface 20202, so that when the first adjusting surface 2002 and the second adjusting surface 20200 slide relatively, the second mounting hole 1042 is always exposed in the first mounting hole 2040. The cam 20 is adjusted to a desired height, and the first mounting hole 2040 and the second mounting hole 2042 are locked, so that the supporting block 100 and the first movable block 2020 can be fixed. In addition, a fourth mounting hole 2046 is formed in the second movable block 2022, and a third mounting hole 2044 is formed in the connecting block 204 at a position corresponding to the fourth mounting hole 2046, because the third mounting hole 2044 is a kidney-shaped hole, and the third mounting hole 2044 is formed in a direction parallel to a moving direction of the second movable block 2022 when approaching or departing from the supporting block 200, for example, a direction perpendicular to the bottom surface 2000 (i.e., a height direction of the cam 20) as shown in fig. 2, and the fourth mounting hole 2046 may be a screw hole, when the first movable block 2020 simultaneously drives the second movable block 2022 to approach or depart from the supporting block 200 by the cooperation of the third adjusting surface 20202 and the fourth adjusting surface 20220, the fourth mounting hole 2046 may be always exposed in the third mounting hole 2044. Of course, in other embodiments, the first mounting hole 2040 may also be formed on the first movable block 2020, and the corresponding second mounting hole 2042 is formed on the supporting block 200; similarly, the third mounting hole 2044 may also be formed on the second movable block 2022, and the corresponding fourth mounting hole 2046 is formed on the supporting block 200; in addition, the connecting block 204 may be fixedly connected to the second movable block 2022, and the connecting block 204 is connected to the supporting block 200 through the third mounting hole 2044 and the fourth mounting hole 2046 which are matched with each other; and one or more connection blocks 204 of the present application can be provided according to actual needs.

In a specific application scenario, the first mounting hole 2040 and the second mounting hole 2042 may be fixed by a bolt, and when the distance between the guide surface 20222 of the second movable block 2022 and the bottom surface 2000 of the support block 200 needs to be adjusted, the bolt between the first mounting hole 2040 and the second mounting hole 2042 is loosened first, so that the second adjusting surface 20200 and the first adjusting surface 2002 slide relatively; since the third mounting hole 2044 and the fourth mounting hole 2046 can also be fixed by bolts, and at this time, the bolts between the third mounting hole 2044 and the fourth mounting hole 2046 are loosened, the second movable block 2022 approaches or leaves the supporting block 200 due to the sliding of the first movable block 2020, when the second movable block 2022 approaches or leaves the supporting block 200 to a certain position due to the sliding of the first movable block 2020, a required distance is reached between the guide surface 20222 and the bottom surface 2000, that is, the guide surface 20222 is adjusted to a required height, then the bolts are inserted into the first mounting hole 2040 and the second mounting hole 2042 and locked, and the bolts are inserted into the third mounting hole 2044 and the fourth mounting hole 2046 and locked, so that the cam 20 can be fixed. Compared with the first embodiment, in this embodiment, the positions of the second movable block 2022 and the supporting block 200 in the height direction are adjustable by the transmission of the first movable block 2020, but the positions of the two in the extending direction of the guide surface 20222 can be relatively fixed, so that the height of the cam 20 can be adjusted without affecting the position of the cam 20.

Further, a plurality of second mounting holes 2042 may also be formed in the first movable block 2020 or the connecting block 204 along an extending direction parallel to the first adjusting surface 2002 or the third adjusting surface 20202, so as to ensure that at least one second mounting hole 2042 is exposed in the first mounting hole 2040. Similarly, a plurality of fourth mounting holes 2046 may be formed in the second movable block 2022 or the support block 200 or the connecting block 204 along a direction parallel to the sliding direction of the second movable block 2022 relative to the support block 200, so as to ensure that at least one fourth mounting hole 2046 is exposed in the third mounting hole 2044.

Further, in order to ensure that only the height of the cam 20 is adjusted without affecting the position of the cam 20, the cam 20 may further include a guide block 208, the guide block 208 is fixedly disposed at a side of one of the support block 200 and the second movable block 2022, the guide block 208 includes a groove 2080 concavely formed along a direction parallel to a moving direction of the second movable block 2022 when approaching or departing from the support block 200, and a side of the other of the support block 200 and the second movable block 2022 is inserted into the groove 2080 and is slidable in the groove 2080. It is understood that the guide block 208 may be fixedly disposed at the side of the supporting block 200, or may be fixedly disposed at the side of the second movable block 2022; for example, when the guide block 208 is fixedly disposed on the side surface of the supporting block 200, the side surface of the second movable block 2022 is inserted into the slot 2080 and is slidable in the slot 2080, so that the guide block 208 can limit the sliding direction of the second movable block 2022 to the opening direction of the slot 2080, such as the direction perpendicular to the bottom surface 2000 shown in fig. 2.

In addition, the point on the guide block 208 farthest from the bottom surface 2000 is defined as the highest point of the guide block 208, and the highest point of the guide block 208 is located on the side, close to the bottom surface 2000, of the extending direction of the guide surface 20222, that is, the guide block 208 does not protrude from the guide surface 20222 and the extending surface where the guide surface 20222 is located, so that the guide block 208 does not obstruct the guided follower when the guide surface 20222 guides the follower to move.

Further, there are two guide blocks 208, taking the guide block 208 fixedly disposed on the side surface of the supporting block 200 as an example, the two guide blocks 208 are respectively disposed on two sides of the supporting block 200 in the extending direction, and two side surfaces of the second movable block 2022 in the extending direction are respectively inserted into the slot 2080 of the guide block 208 on the corresponding side; the first movable block 2020 is located between the two guide blocks 208, and it should be noted that, since the first movable block 2020 moves relative to the support block 200 and the second movable block 2022 along the extending direction of the two, the length of the first movable block 2020 in the extending direction is smaller than that of the support block 200 and the second movable block 2022, and the support block 200 and the second movable block 2022 are limited in the extending direction by the guide blocks 208 in relative positions. As shown in fig. 2, the two guide blocks 208 are respectively disposed on two sides of the supporting block 200, and meanwhile, two sides of the second movable block 2022 are respectively clamped in the corresponding clamping slots 2080; it can be understood that the clamping grooves 2080 on the two sides of the second movable block 2022 can guide the second movable block 2022 in the vertical direction relative to the sliding of the support block 200, and can limit the fourth adjusting surface 20220 of the second movable block 2022 to slide along the third adjusting surface 20202 of the first movable block 2020, so that the debugging process for adjusting the distance between the guide surface 20222 and the bottom surface 2000 can be simplified, and the debugging is more convenient, faster and more stable. Thus, when the first movable block 2020 slides relative to the supporting block 200, the second adjusting surface 20200 of the first movable block 2020 slides along the first adjusting surface 2002 of the supporting block 200, and the third adjusting surface 20202 of the first movable block 2020 slides along the fourth adjusting surface 20220 of the second movable block 2022, and at this time, the second movable block 2022 can only move in the vertical direction; therefore, when the second adjusting surface 20200 of the first movable block 2020 slides along the first adjusting surface 2002 of the supporting block 200 and the third adjusting surface 20202 of the first movable block 2020 slides along the fourth adjusting surface 20220 of the second movable block 2022, the sliding is finally blocked by the guide blocks 208 on both sides and cannot continue to slide beyond the outer sides of the guide blocks 208. It will be appreciated that when the cam 20 of the present application is used for fine adjustment, the clearance between the first movable block 2020 and the guide block 208 need not be too large, since the distance between the guide surface 20222 and the bottom surface 2000 generally does not deviate too much, and the guide block 208 may limit the range of motion of the first movable block 2020, avoiding overshoot of the first movable block 2020.

Further, taking the guide block 208 fixedly disposed on the side of the supporting block 200 as an example, referring to fig. 3, the guide block 208 and the second movable block 2022 can be connected by a fifth installation hole 2082 and a sixth installation hole 2084 which are matched with each other, wherein the fifth installation hole 2082 is a kidney-shaped hole, and the fifth installation hole 2082 is disposed in parallel with the moving direction of the second movable block 222 when approaching or departing from the supporting block 200. For example, the second movable block 2022 is provided with a sixth installation hole 2084, the guide block 208 is provided with a fifth installation hole 2082 at a position corresponding to the sixth installation hole 2084, the fifth installation hole 2082 is a waist-shaped hole, the opening direction of the fifth installation hole 2082 is along a moving direction parallel to the second movable block 2022 and close to or away from the support block 200, and the sixth installation hole 2084 can be a screw hole, so when the second movable block 2022 slides in the clamping groove 2080 of the guide block 208 relative to the support block 200, that is, when the second movable block 2022 is close to or away from the support block 200, the sixth installation hole 2084 can be always exposed in the fifth installation hole 2082, and after the second movable block 2022 slides to a desired position, the fifth installation hole 2082 and the sixth installation hole 2084 can be fixed by bolts to fix the second movable block 2022 and the guide block 208. Of course, in other embodiments, the fifth mounting hole 2082 may also be formed on the second movable block 2022, and the corresponding sixth mounting hole 2084 is formed on the guide block 208.

Further, the support block 200 further comprises an adjustment block 2004 and a bottom block 2006, the adjustment block 2004 being located between the guide block 202 and the bottom block 2006; the adjusting block 2004 comprises a first adjusting surface 2002 and a fifth adjusting surface 20040, the bottom block 2006 comprises a sixth adjusting surface 20060 and a bottom surface 2000, and the fifth adjusting surface 20040 is attached to the sixth adjusting surface 20060; the adjusting block 2004 slides relative to the bottom block 2006 through the cooperation of the fifth adjusting surface 20040 and the sixth adjusting surface 20060, so as to adjust the relative position between the guide surface 20222 and the bottom surface 2000 while keeping the distance between the guide surface 20222 and the bottom surface 2000 unchanged. It can be understood that the adjustment of the distance between the guide surface 20222 and the bottom surface 2000 can be realized by the mutual sliding fit between the support block 200 and the guide block 202; however, in practical applications, the installation position of the entire cam 20 may deviate from the actually required position, in addition to the height deviation between the guide surface 20222 and the bottom surface 2000, and the position deviation may also exist in a plane perpendicular to the height direction between the guide surface 20222 and the bottom surface 2000, and by the mutual sliding fit between the support block 200 and the guide block 202, only the distance between the guide surface 20222 and the bottom surface 2000 can be adjusted, or the position in the horizontal plane is changed while adjusting the distance, which cannot guarantee the adjustment of the horizontal position under the condition that the height of the cam is not changed. Therefore, the bottom block 2006 comprises a sixth adjusting surface 20060 and a bottom surface 2000, so that the bottom block 2006 can be fixedly connected with the rack through the bottom surface 2000, the adjusting block 2004 comprises a first adjusting surface 2002 and a fifth adjusting surface 20040, the fifth adjusting surface 20040 is attached to the sixth adjusting surface 20060, and the adjusting block 2004 can slide relative to the bottom block 2006 through the cooperation of the fifth adjusting surface 20040 and the sixth adjusting surface 20060; the fifth adjusting surface 20040 and the sixth adjusting surface 20060 are horizontal surfaces extending along the extending direction of the supporting block 200 and the guiding block 202, and at this time, the adjusting block 2004 slides relative to the bottom block 2006 without affecting the distance between the guiding surface 20222 and the bottom surface 2000, and only the position of the guiding surface 20222 in a plane perpendicular to the height direction between the guiding surface 20222 and the bottom surface 2000 is adjusted.

Further, the adjusting block 2004 and the bottom block 2006 can be connected by a seventh mounting hole 20042 and an eighth mounting hole 20062 which are matched with each other, wherein the seventh mounting hole 20042 is a kidney-shaped hole, and the seventh mounting hole 20042 is arranged in a direction parallel to the sliding direction of the adjusting block 2004 relative to the bottom block 2006.

As shown in fig. 3, in the present embodiment, the supporting block 200 includes a bottom block 2006 fixed to the frame and an adjusting block 2004 having a first adjusting surface 2002, and a fifth adjusting surface 20040 of the adjusting block 2004 is attached to a sixth adjusting surface 20060 of the bottom block 2006; the adjusting block 2004 is provided with a seventh mounting hole 20042, the bottom block 2006 is provided with an eighth mounting hole 20062 corresponding to the seventh mounting hole 20042, the seventh mounting hole 20042 is a waist-shaped hole, the seventh mounting hole 20042 is formed in a direction parallel to the sliding direction of the adjusting block 2004 relative to the bottom block 2006, the eighth mounting hole 20062 can be a screw hole, and when the fifth adjusting surface 20040 and the sixth adjusting surface 20060 slide relative to each other, the eighth mounting hole 20062 can be exposed in the seventh mounting hole 20042 all the time. Of course, in other embodiments, a seventh mounting hole 20042 may also be formed in the bottom block 2006 and a corresponding eighth mounting hole 20062 may be formed in the adjustment block 2004. It is understood that the sliding direction of the adjusting block 2004 relative to the bottom block 2006 in parallel with the present application may be any direction on a horizontal plane perpendicular to the height direction of the cam, may be an extending direction of an arc-shaped structure of the cam 20 as shown in fig. 3, and is used for adjusting the position of the guide surface 20222 in the guiding direction of the cam 20, and may be any linear direction for adjusting the position of the guide surface 20222 in the front-rear or left-right direction.

In a specific application scenario, the seventh mounting hole 20042 and the eighth mounting hole 20062 may be fixed by a bolt, when the position of the guide surface 20222 in a plane perpendicular to the height direction between the guide surface 20222 and the bottom surface 2000 needs to be adjusted, the bolt between the seventh mounting hole 20042 and the eighth mounting hole 20062 is firstly loosened, so that the fifth adjusting surface 20040 and the sixth adjusting surface 20060 may slide relatively, when the adjusting block 2004 slides to a certain position relative to the bottom block 2006 through the cooperation of the fifth adjusting surface 20040 and the sixth adjusting surface 20060, the position of the guide surface 20222 in the plane perpendicular to the height direction between the guide surface 20222 and the bottom surface 2000 meets the requirement, that is, the guide surface 20222 is adjusted to the required position, and then the bolt is inserted into the seventh mounting hole 20042 and the eighth mounting hole 20062 and locked, that is, the adjusting block 2004 and the bottom block 2006 may be fixed.

Further, a plurality of eighth mounting holes 20062 may be formed in the adjusting block 2004 or the bottom block 2006 along a direction parallel to the sliding direction of the adjusting block 2004 relative to the bottom block 2006, so as to ensure that at least one eighth mounting hole 20062 is exposed in the seventh mounting hole 20042.

Further, the cam 20 further comprises a recording assembly 206, and the recording assembly 206 comprises a dial indicator 2060, a mounting plate 2062 and a top block 2064; the top block 2064 is fixedly arranged on one of the supporting block 200 and the guiding block 202, the mounting plate 2062 is fixedly arranged on the other of the supporting block 200 and the guiding block 202, the dial indicator 2060 is arranged on the mounting plate 2062, the dial indicator 2060 comprises an abutting end 20600, and the abutting end 20600 is used for abutting against the top block 2064 so as to record the distance between the mounting plate 2062 and the top block 2064. Please refer to the related contents of the recording component 106 in the first embodiment for the recording component 206, which is not described herein. The difference is that, since the recording element 206 is used for recording the distance change between the guide surface 20222 and the bottom surface 2000, when the top block 2064 is fixedly disposed on the second movable block 2022 where the guide surface 20222 is located, the mounting plate 2062 may be fixedly disposed on the support block 200 or fixedly disposed on the first movable block 2020; when the mounting plate 2062 is fixedly disposed on the second movable block 2022 where the guide surface 20222 is located, the top block 2064 may be fixedly disposed on the supporting block 200 or may be fixedly disposed on the first movable block 2020.

Referring to fig. 4, fig. 4 is a schematic structural diagram of an embodiment of a cam mechanism provided in the present invention. The cam mechanism 40 of the present application includes: a frame 400 and a follower 402; the cam 404, the cam 404 includes a bottom surface 4040 and a guiding surface 4042, the cam 404 is fixedly connected to the frame 400 through the bottom surface 4040, and the cam 404 guides the follower 402 to move through the guiding surface 4042, wherein the cam 404 is the cam 10 or the cam 20 described above.

According to the cam mechanism 40, the distance between the bottom surface 4040 and the guide surface 4042 of the cam 404 can be adjusted, the cam 404 guides the follower 402 to move through the guide surface 4042, and when the distance between the guide surface 4042 and the bottom surface 4040 deviates from the preset position of the follower 402 to be guided, the distance between the bottom surface 4040 and the guide surface 4042 of the cam 404 can be adjusted, so that the height of the cam 404 is changed, and the cam mechanism 40 is highly adaptive. For the related content of the cam 404, refer to the above detailed description of the structural embodiment of the cam 10 or 20.

In several embodiments provided herein, it should be understood that the disclosed cam and cam mechanism may be implemented in other ways. For example, the embodiment of the cam and the cam mechanism described above is only illustrative, the division of each functional portion is only a logical division, and there may be another division in actual implementation, for example, a plurality of functional portions may be combined or integrated into several modules, or each functional portion may exist alone physically, and so on.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent principle changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A cam, wherein the cam is disposed on a frame for guiding movement of a follower, the cam comprising:

the supporting block comprises a bottom surface and a first adjusting surface, and the bottom surface is used for being connected with the rack;

the guide block comprises a guide surface and a second adjusting surface, the guide surface is used for guiding the driven piece to move, and the second adjusting surface is attached to the first adjusting surface; the guide block is matched with the first adjusting surface through the second adjusting surface to realize sliding relative to the supporting block so as to adjust the distance between the guide surface and the bottom surface.

2. The cam according to claim 1, wherein said cam comprises:

the connecting block is respectively connected with the supporting block and the guide block; the connecting block is fixedly connected with one of the supporting block and the guiding block, and the connecting block is connected with the other of the supporting block and the guiding block through a first mounting hole and a second mounting hole which are matched with each other, wherein the first mounting hole is a kidney-shaped hole, and the first mounting hole is arranged along the extending direction parallel to the first adjusting surface.

3. The cam according to claim 1,

the guide block comprises a first movable block and a second movable block, and the first movable block is positioned between the supporting block and the second movable block; the first movable block comprises a second adjusting surface and a third adjusting surface, the second movable block comprises a fourth adjusting surface and a guide surface, and the fourth adjusting surface is attached to the third adjusting surface; the first movable block is matched with the first adjusting surface through the second adjusting surface to realize sliding relative to the supporting block, and when the first movable block slides relative to the supporting block, the third adjusting surface is matched with the fourth adjusting surface to enable the second movable block to be close to or far away from the supporting block, so that the distance between the guide surface and the bottom surface is adjusted.

4. The cam according to claim 3, wherein said cam comprises:

the connecting block is respectively connected with the supporting block, the first movable block and the second movable block;

the connecting block is connected with the first movable block through a first mounting hole and a second mounting hole which are matched with each other, wherein the first mounting hole is a waist-shaped hole, and the first mounting hole is arranged along the extending direction which is parallel to the first adjusting surface or the second adjusting surface;

the connecting block is fixedly connected with one of the supporting block and the second movable block, and the connecting block is connected with the other of the supporting block and the second movable block through a third mounting hole and a fourth mounting hole which are matched with each other, wherein the third mounting hole is a kidney-shaped hole, and the third mounting hole is arranged in a direction parallel to the moving direction of the second movable block when the second movable block is close to or far away from the supporting block.

5. The cam according to claim 3, wherein said cam comprises:

the guide block is fixedly arranged on the side face of one of the supporting block and the second movable block, the guide block comprises a clamping groove which is formed in a concave mode along the moving direction when the second movable block is close to or far away from the supporting block, and the side face of the other of the supporting block and the second movable block is inserted into the clamping groove and can slide in the clamping groove.

6. The cam according to claim 5,

the guide block is connected with the second movable block or the supporting block through a fifth mounting hole and a sixth mounting hole which are matched with each other, wherein the fifth mounting hole is a kidney-shaped hole, and the fifth mounting hole is arranged along a moving direction which is parallel to the second movable block when the second movable block is close to or far away from the supporting block.

7. The cam according to any one of claims 1 to 6,

the supporting block comprises an adjusting block and a bottom block, and the adjusting block is positioned between the guide block and the bottom block; the adjusting block comprises a first adjusting surface and a fifth adjusting surface, the bottom block comprises a sixth adjusting surface and the bottom surface, and the fifth adjusting surface is attached to the sixth adjusting surface; the adjusting block is matched with the sixth adjusting surface through the fifth adjusting surface to realize sliding relative to the bottom block, so that the relative position between the guide surface and the bottom surface is adjusted under the condition that the distance between the guide surface and the bottom surface is kept unchanged.

8. The cam according to claim 7,

the adjusting block is connected with the bottom block through a seventh mounting hole and an eighth mounting hole which are matched with each other, wherein the seventh mounting hole is a waist-shaped hole, and the seventh mounting hole is arranged in a direction parallel to the sliding direction of the adjusting block relative to the bottom block.

9. The cam according to claim 1, further comprising:

the recording component comprises a dial indicator, a mounting plate and a top block; the top block is fixedly arranged on one of the supporting block and the guiding block, the mounting plate is fixedly arranged on the other one of the supporting block and the guiding block, the dial indicator is arranged on the mounting plate and comprises a contact end, and the contact end is used for being abutted to the top block so as to record the distance between the mounting plate and the top block.

10. A cam mechanism, comprising:

a frame and a follower;

a cam comprising a bottom surface and a guide surface, the cam being connected to the frame via the bottom surface, the cam guiding the movement of the follower via the guide surface, the cam being as claimed in any one of claims 1 to 9.