CN213380163U

CN213380163U - Crank press fitting equipment

Info

Publication number: CN213380163U
Application number: CN202022495053.9U
Authority: CN
Inventors: 陈昶震; 梅智慧
Original assignee: Zhejiang Hope Sports Equipment Co ltd
Current assignee: Zhejiang Hope Sports Equipment Co ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-06-08
Anticipated expiration: 2030-11-02

Abstract

The utility model belongs to the technical field of crank press-mounting machines, in particular to crank press-mounting equipment, which comprises a crank press-mounting mechanism, wherein the crank press-mounting mechanism is used for transversely press-mounting a crank of a bicycle; the lifting mechanism is connected with the crank press-mounting mechanism and is used for driving the crank press-mounting mechanism to move up and down; the suspension mechanism is connected with the lifting mechanism and is used for driving the crank press-fitting mechanism to horizontally move; an optical axis is vertically arranged on the lifting mechanism, a box-type bearing is arranged at the lower end of the suspension mechanism, the suspension mechanism and the lifting mechanism are connected together by penetrating through the box-type bearing through the optical axis, and the optical axis is used for moving up and down in the box-type bearing to drive the crank press-fitting mechanism to move up and down; the supporting structure is fixed on the fixing surface, and the upper end of the suspension mechanism can be horizontally arranged at the upper end of the supporting structure in a moving mode. Therefore, the lifting mechanism and the suspension mechanism drive the crank press-mounting mechanism to move, and the problem of low production efficiency caused by incapability of moving of the press-mounting machine is solved.

Description

Crank press fitting equipment

Technical Field

The utility model relates to a crank pressure equipment machine technical field refers in particular to a crank pressure equipment.

Background

The cranks on the pedals of the existing bicycles for traveling and the dynamic bicycles for body building are all important parts required by the bicycles and the dynamic bicycles for body building, so that the press fitting process of the cranks is very important, but the existing crank press fittings are always unmovable and can only be fixed in one place for press fitting, the bicycles need to be conveyed from a production line for press fitting, the labor and the time are wasted, and the production efficiency is seriously influenced.

The invention discloses a bearing press-fitting jig of a permanent magnet motor rotor, which is invented and invented under the name of China patent application No. 201520090704.2, published as 2015, 2, month 9 and named as a positioning movable permanent magnet motor rotor bearing press-fitting jig. The positioning movable type bearing press-fitting jig comprises a base, a press-fitting mechanism, a rotor positioning mechanism, a rear bearing positioning mechanism and a reset mechanism, wherein the press-fitting mechanism is used for providing a bearing press-fitting driving force, the rotor positioning mechanism is used for placing and positioning a permanent magnet motor rotor and can enable the permanent magnet motor rotor to be separated from an initial position, the rear bearing positioning mechanism is used for placing and positioning a rear bearing, the reset mechanism is used for enabling the rotor positioning mechanism to return to the initial position, and the press-fitting mechanism, the permanent magnet motor rotor placed on the rotor positioning mechanism and.

The press fitting jig disclosed by the patent document has the effects of simultaneously realizing the simultaneous press fitting of two bearings of the permanent magnet motor, low operation risk, good press fitting quality and low cost, and has the disadvantages that the whole press fitting jig cannot move, a workpiece needs to be sent when needing to be pressed, the labor and time are wasted, and certain production efficiency is influenced.

Disclosure of Invention

The utility model aims at providing a crank pressure equipment, including crank pressure equipment mechanism, elevating system, suspend mechanism and bearing structure in midair, drive crank pressure equipment mechanism through elevating system and suspend the mechanism in midair and remove, solve the unable problem that removes and the production efficiency that causes of pressure equipment machine is low.

The purpose of the utility model is realized like this:

a crank press fitting device, comprising:

the crank press-mounting mechanism is used for transversely press-mounting a crank of the bicycle;

the lifting mechanism is connected with the crank press-mounting mechanism and is used for driving the crank press-mounting mechanism to move up and down;

the suspension mechanism is connected with the lifting mechanism and is used for driving the crank press-fitting mechanism to horizontally move;

an optical axis is vertically arranged on the lifting mechanism, a box-type bearing is arranged at the lower end of the suspension mechanism, the suspension mechanism and the lifting mechanism are connected together by penetrating through the box-type bearing through the optical axis, and the optical axis is used for moving up and down in the box-type bearing to drive the crank press-fitting mechanism to move up and down;

and the supporting structure is fixed on the fixing surface, and the upper end of the suspension mechanism can be horizontally arranged at the upper end of the supporting structure in a moving way.

Preferably, the crank press-fitting mechanism comprises a C-shaped pressure head and a driving source, the driving source is arranged at one end of the C-shaped pressure head, the C-shaped pressure head is used for fixing a crank of the bicycle, and the driving source is used for pressing the crank.

Preferably, a left guide sleeve and a right guide sleeve are respectively and oppositely arranged at two ends of the inner side of the C-shaped pressure head, and the left guide sleeve and the right guide sleeve are respectively used for fixing cranks at two sides of a bicycle.

Preferably, the left end of the left guide sleeve and the right end of the right guide sleeve are both formed with arc-shaped sheet bodies, and the sheet bodies are used for being attached to one end of the crank.

Preferably, the right end of the right guide sleeve is provided with a guide cylinder, and the right guide sleeve and the guide cylinder are both arranged in the crank press-fitting mechanism in a sliding manner.

Preferably, the crank press-fitting mechanism comprises a connecting column, the lifting mechanism comprises a clamping block, a through hole matched with the connecting column is formed in the clamping block, and the connecting column penetrates through the through hole to fix the crank press-fitting mechanism on the lifting mechanism.

Preferably, the support structure comprises a plurality of vertical support bars and a plurality of transverse support bars; the lower extreme of vertical support bar is fixed on the stationary plane, and the upper end of vertical support bar is used for fixed horizontal bracing piece, and horizontal bracing piece is used for installing the guide rail, and the guide rail is used for suspending in midair the horizontal migration of mechanism on bearing structure.

Preferably, the suspension mechanism comprises a spring balancer, a box-type bearing and a mounting plate, wherein a mounting block is arranged on the upper surface of the mounting plate and used for connecting the support structure; the lower surface of the mounting plate is provided with a fixing ring and a vertical rod, the fixing ring is used for connecting a spring balancer, and the box-type bearing is arranged at the lower end of the vertical rod; the spring balancer and the box-type bearing are used for connecting the lifting mechanism.

Preferably, the upper end and the lower end of the optical axis are respectively provided with an upper clamping block and a lower clamping block, and the upper clamping block and the lower clamping block are used for fixing the optical axis.

Preferably, a horizontally arranged chute is formed at the upper end of the supporting structure, the suspension mechanism comprises a plurality of pulleys matched with the chute, and the horizontal movement of the suspension mechanism on the supporting structure is realized through the movement of the pulleys in the chute.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

1. the utility model discloses an elevating system drives crank press fitting mechanism with suspending in midair the mechanism and removes to make crank press fitting mechanism can easily be about the ground and horizontal migration to the optional position in a production line section region, and then as long as remove crank press fitting mechanism and remove bicycle position and can and then the pressure equipment, not only save time but also laborsaving, finally greatly improved production efficiency.

2. The utility model discloses an equal shaping of the right-hand member of left end and right uide bushing of left uide bushing has convex lamellar body, the articulate one end of lamellar body laminating to the crank that makes the bicycle both sides can set up relatively and pinpoint on the bicycle, and the crank can be accurately pressed fitting on the bicycle according to established position when also enabling the crank pressure equipment simultaneously.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an enlarged view of fig. 1 at a.

Fig. 3 is an enlarged view of fig. 1 at B.

Fig. 4 is a front view of the present invention.

Fig. 5 is a top view of the present invention.

Fig. 6 is a schematic structural view of the crank press-fitting mechanism.

Fig. 7 is a schematic cross-sectional view of the crank press-fitting mechanism.

Fig. 8 is a schematic structural view of the lifting structure.

Fig. 9 is a schematic structural view of the suspension mechanism.

Reference numerals: 1-a crank press-fitting mechanism; 101-connecting column; 102- "C" shaped indenter; 103-a drive source; 104-left guide sleeve; 105-right guide sleeve; 106-a platelet; 107-display screen; 108-a power supply; 109-a handle; 110-a handle; 111-a guide cylinder; 2-a lifting mechanism; 201-a clamping block; 202-a through hole; 203-optical axis; 204-upper clamping block; 205-lower clamping block; 206-connecting ring; 3-a suspension mechanism; 301-box bearing; 302-a pulley; 303-spring balancer; 304-a mounting plate; 305-a mounting block; 306-a retaining ring; 307-upright stanchion; 4-a support structure; 401-a chute; 402-vertical support bars; 403-transverse support bars; 404-a guide rail; 5-single vehicle; 501-crank.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings.

A crank press-mounting device is shown in figures 1-5 and comprises a crank press-mounting mechanism 1, wherein the crank press-mounting mechanism 1 is transversely arranged on the crank press-mounting device, and after a bicycle 5 is conveyed to a region where a crank press-mounting process is located from a production line, an operator manually moves the crank press-mounting mechanism 1 to transversely press-mount cranks 501 on two sides of the bicycle 5. The crank 501 is a connecting member between the pedal stepped on and the vehicle body in the bicycle 5, i.e., a conventional member shaped like a "z".

As shown in fig. 1-5, the lifting mechanism 2 is connected to the upper end of the crank press-fitting mechanism 1, and the lifting mechanism 2 is used for driving the crank press-fitting mechanism 1 to move up and down. The suspension mechanism 3 is connected to the lifting mechanism 2, and the suspension mechanism 3 is used for driving the crank press-fitting mechanism 1 to move horizontally. The crank press-fitting equipment further comprises a supporting structure 4, the supporting structure 4 is fixed on the fixing surface, and the upper end of the suspension mechanism 3 can be horizontally arranged on the supporting structure 4 in a moving mode. Therefore, the lifting mechanism 2 and the suspension mechanism 3 respectively drive the crank press-mounting mechanism 1 to move up and down and horizontally, so that the crank press-mounting mechanism 1 can move to any position within the range of the supporting structure 4 for press-mounting.

Next, a connection structure between the crank press-fitting mechanism 1 and the lifting mechanism 2 will be specifically described. With reference to fig. 1, 4 and 6, the crank press-fitting mechanism 1 includes a connecting column 101, and the connecting column 101 is transversely disposed at the upper end of the crank press-fitting mechanism 1. As shown in fig. 8, the lifting mechanism 2 includes a clamping block 201, and the clamping block 201 is disposed at a lower end of the lifting mechanism 2. The clamping block 201 is provided with a through hole 202 matched with the connecting column 101, and as shown in fig. 2, the connecting column 101 penetrates through the through hole 202 to fix the crank press-fitting mechanism 1 on the lifting mechanism 2. The number of clamp blocks 201 is not limited, and the number of clamp blocks 201 is preferably two in this embodiment, so that the number of the clamp blocks 201 of the parts is saved, and the left end and the right end of the connecting column 101 can be fixed, so that the crank press-fitting mechanism 1 can be more stably fixed on the lifting mechanism 2.

Next, a connection structure of the suspension mechanism 3 and the lifting mechanism 2 will be specifically described. As shown in fig. 7, the lifting mechanism 2 includes an optical axis 203, and the optical axis 203 is vertically disposed at an upper end of the lifting mechanism 2. As shown in fig. 8, the suspension mechanism 3 includes a box bearing 301, and the box bearing 301 is provided at a lower end of the suspension mechanism 3. Referring to fig. 1 and 4, the optical axis 203 passes through the box bearing 301 to connect the suspension mechanism 3 and the lifting mechanism 2, and the lifting mechanism 2 moves up and down in the box bearing 301 through the optical axis 203 to drive the crank press-fitting mechanism 1 to move up and down. Moreover, the up-and-down movement of the optical axis 203 is smoother due to the characteristics of the box bearing 301 itself, and the up-and-down movement of the crank press-fitting mechanism 1 is smoother.

Further, the number of the optical axes 203 is not limited, the box-type bearings 301 correspond to the number of the optical axes 203, and in this example, the number of the optical axes 203 is preferably two, so that the bearing capacity of the whole lifting structure is increased while the number of the optical axes 203 of the parts is saved.

Further, as shown in fig. 8, an upper clamping block 204 and a lower clamping block 205 are respectively disposed at the upper end and the lower end of the optical axis 203, and the upper clamping block 204 and the lower clamping block 205 connect the two optical axes 203 together, so that the two optical axes 203 can move synchronously. Meanwhile, the upper clamping block 204 and the lower clamping block 205 also limit the movement of the optical axis 203, when the upper end or the lower end of the optical axis 203 moves to the end of the box-type bearing 301, the upper clamping block 204 or the lower clamping block 205 can abut against the end of the box-type bearing 301, so that the optical axis 203 cannot be separated from the box-type bearing 301, and certain safety is improved.

Next, the connection structure of the support structure 4 and the suspension mechanism 3 will be specifically described. As shown in fig. 1, 3 and 4, a horizontally disposed sliding groove 401 is formed at the upper end of the supporting structure 4, and the suspension mechanism 3 includes a plurality of pulleys 302 engaged with the sliding groove 401.

In practical use, the horizontal movement of the suspension mechanism 3 on the support structure 4 is realized through the movement of the pulley 302 in the sliding groove 401, then the suspension mechanism 3 drives the lifting mechanism 2 to move horizontally, and finally the lifting mechanism drives the crank press-fitting mechanism 1 to move horizontally.

Next, a specific structure of the crank press-fitting mechanism 1 will be described. As shown in fig. 6, the crank press-fitting mechanism 1 includes a "C" ram 102 and a drive source 103, and the drive source 103 is provided at one end of the "C" ram 102.

In the actual press-fitting operation, the bicycle 5 is placed on the inner side of the C-shaped press head 102, the C-shaped press head 102 is used for fixing the crank 501 of the bicycle 5, then the driving source 103 presses the crank 501 fixed in advance on the two sides of the bicycle 5, and then the crank press-fitting mechanism 1 is removed, so that the bicycle 5 with the pressed crank 501 can be conveyed to the next process on the production line.

As shown in fig. 6, the crank press-fitting mechanism 1 further includes a display screen 107, a control circuit, a power supply 108, a handle 109, and the like. The control circuit is used for controlling the rotating speed of the motor and the running speed of equipment. A display screen 107 is provided on the connecting stick, the display screen 107 being used to display the drive source 103 and some data of the operation of the device. The power supply 108 is arranged below the connecting rod, and the power supply 108 is used for providing energy required by electric components such as the driving source 103, the display screen 107 and the control circuit. A handle 109 is provided on one side of the connecting rod so that the operator can move the crank press 1 more easily by holding the handle 109.

The driving source 103 may be an air cylinder, a hydraulic cylinder, an electric cylinder, or the like, and in this embodiment, an electric cylinder is preferably used, and the electric cylinder may share one power supply 108 with other electric components of the crank press-fitting mechanism 1, so that the power supply 108 is fully utilized, and the structure of the apparatus is simplified.

Further, with reference to fig. 5 and 7, a left guide sleeve 104 and a right guide sleeve 105 are respectively disposed at two ends of the inner side of the "C" -shaped ram 102, and the left guide sleeve 104 and the right guide sleeve 105 are respectively used for positioning the cranks 501 at two sides of the bicycle 5.

As shown in fig. 5 to 7, the right guide sleeve 105 is provided with a handle 110 and a guide cylinder 111. The guide cylinder 111 is arranged on the right side of the right guide sleeve 105 and sleeved on a push rod of the electric cylinder, the guide cylinder 111 is used for guiding the push rod of the electric cylinder, and both the guide cylinder 111 and the right guide sleeve 105 can be arranged in the crank press-fitting mechanism 1 in a sliding manner. The handle 110 is arranged at the end part of the right guide sleeve 105, the handle 110 is used for pulling the right guide sleeve 105 and the guide cylinder 111, so that the right guide sleeve 105 can abut against the crank 501 on the right side of the bicycle 5, and the electric cylinder push rod can press the crank along the direction of the guide cylinder 111, thereby completing the fixing and positioning of the crank 501 on the right side of the bicycle 5.

Then the electric cylinder push rod carries out accurate press fitting on the crank 501 through the guiding of the guide cylinder 111. Before the press-fitting is started, the crank 501 on the left side of the bicycle 5 is abutted by the left guide sleeve 104 to be fixed and positioned. Therefore, the crank 501 is fixed and positioned through the left guide sleeve 104 and the right guide sleeve 105, the crank 501 can be stably and accurately pressed and pressed, the crank 501 is not prone to shaking during pressing, and the position of the crank 501 after pressing is more accurate.

Further, with reference to fig. 5 and 6, the arc-shaped sheet-like body 106 is formed at the left end of the left guide sleeve 104 and the right end of the right guide sleeve 105, and the sheet-like body 106 is attached to one end of the crank 501, so that the crank 501 is limited within the radian range of the sheet-like body 106, and is not easy to rotate and horizontally shift, and the position of the crank 501 after press mounting is more accurate.

The specific structure of the support structure 4 is explained next. As shown in fig. 1, the supporting structure 4 includes a plurality of vertical supporting rods 402 and a plurality of horizontal supporting rods 403. In this embodiment, four vertical support rods 402 and four horizontal support rods 403 are preferably used, the lower ends of the four vertical support rods 402 are fixed on the fixing surface to surround other mechanisms in the middle, and two horizontal support rods 403 are respectively fixed between the upper ends of the four vertical support rods 402 to finally form a cuboid or cube shape.

As shown in fig. 1, the transverse support bar 403 is provided with guide rails 404 at left and right, respectively at front and rear, the guide rail 404 is formed with the above-mentioned slide groove 401, and the two types of guide rails 404 are vertically connected with the slide groove 401 through the pulley 302. The lower guide rail 404 is connected to the suspension mechanism 3, and the horizontal movement of the suspension mechanism 3 on the support structure 4 is realized by the pulley 302 at the upper end of the suspension mechanism 3 and the slide groove 401 of the guide rail 404.

Next, a specific structure of the suspension mechanism 3 will be described. As shown in fig. 9, the suspension mechanism 3 includes a spring balancer 303, a box bearing 301, and a mounting plate 304, wherein the mounting plate 304 is provided with a mounting block 305 on the upper surface thereof, the mounting block 305 is provided with a pulley 302 thereon, and as shown in fig. 1, the mounting block 305 is connected to a chute 401 on the support structure 4 through the pulley 302. Referring to fig. 4 and 9, the lower surface of the mounting plate 304 is provided with a fixing ring 306 and a vertical rod 307, the fixing ring 306 is used for connecting the spring balancer 303, and the box bearing 301 is arranged at the lower end of the vertical rod 307; the spring balancer 303 and the box bearing 301 are used to connect the lifting mechanism 2.

As shown in fig. 4, the suspension mechanism 3 is connected to the lifting mechanism 2, specifically, the connection ring 206 on the lifting mechanism 2, through the spring balancer 303, so that the spring balancer 303 is indirectly connected to the crank press-fitting mechanism 1, and further, the crank press-fitting mechanism 1 is in a gravity-free state by using the characteristics of the spring balancer 303 itself, and finally, the movement of the crank press-fitting mechanism 1 is facilitated.

The specific working process of the scheme is as follows:

an operator holds the handle 110 on the crank press-fitting mechanism 1, applies force to the crank press-fitting mechanism 1 manually, and then enables the crank press-fitting mechanism 1 to be in a gravity-free state through the spring balancer 303 on the lifting structure, so that the operator can move the crank press-fitting mechanism 1 more conveniently and labor-saving. The optical axis 203 of the lifting structure moves up and down in the box-type bearing 301 to assist in driving the crank press-fitting mechanism 1 to move up and down, so that an operator can move the crank press-fitting mechanism 1 up and down more stably and accurately. The pulley 302 of the suspension mechanism 3 moves in the chute 401 to assist in driving the crank press-fitting mechanism 1 to move horizontally, so that an operator can move the crank press-fitting mechanism 1 horizontally more stably and accurately.

On the production line, after a processor performs knocking and pre-fixing on the crank 501 on the bicycle 5, the production line transmits the bicycle 5 to a press-mounting station, namely, within the range of the supporting structure 4, then an operator moves the C-shaped pressure head 102 in the crank press-mounting mechanism 1 to the position of the bicycle 5, abuts the left guide sleeve 104 against the crank 501 on the left side of the bicycle 5, fixes and positions the crank 501 on the left side of the bicycle 5, then pulls the handle 110 to move the right guide sleeve 105 for a certain distance, so that the right guide sleeve 105 abuts against the crank 501 on the right side of the bicycle 5, the fixing and positioning of the crank 501 on the two sides of the bicycle 5 are completed, and finally, the electric cylinder drives the push rod to advance, and the press-mounting of the crank 501 on the two sides of the bicycle 5 can be performed simultaneously.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a crank pressure equipment which characterized in that includes:

the crank press-fitting mechanism (1), the crank press-fitting mechanism (1) is used for transversely press-fitting a crank (501) of the bicycle (5);

the lifting mechanism (2) is connected with the crank press-fitting mechanism (1), and the lifting mechanism (2) is used for driving the crank press-fitting mechanism (1) to move up and down;

the suspension mechanism (3), the suspension mechanism (3) is connected with the lifting mechanism (2), and the suspension mechanism (3) is used for driving the crank press-fitting mechanism (1) to move horizontally;

an optical axis (203) is vertically arranged on the lifting mechanism (2), a box-type bearing (301) is arranged at the lower end of the suspension mechanism (3), the suspension mechanism (3) is connected with the lifting mechanism (2) by the optical axis (203) penetrating through the box-type bearing (301), and the optical axis (203) is used for moving up and down in the box-type bearing (301) to drive the crank press-fitting mechanism (1) to move up and down;

and the supporting structure (4) is fixed on the fixing surface, and the upper end of the suspension mechanism (3) can be horizontally arranged at the upper end of the supporting structure (4).

2. The crank press-fitting device according to claim 1, characterized in that: the crank press-fitting mechanism (1) comprises a C-shaped pressure head (102) and a driving source (103), wherein the driving source (103) is arranged at one end of the C-shaped pressure head (102), the C-shaped pressure head (102) is used for fixing a crank (501) of a bicycle (5), and the driving source (103) is used for pressing the crank (501).

3. A crank press-fitting device according to claim 2, characterized in that: the two ends of the inner side of the C-shaped pressure head (102) are respectively and oppositely provided with a left guide sleeve (104) and a right guide sleeve (105), and the left guide sleeve (104) and the right guide sleeve (105) are respectively used for positioning cranks (501) on two sides of the bicycle (5).

4. A crank press-fitting device according to claim 3, characterized in that: the left end of the left guide sleeve (104) and the right end of the right guide sleeve (105) are both formed with arc-shaped sheet bodies (106), and the sheet bodies (106) are used for being attached to one end of the crank (501).

5. A crank press-fitting device according to claim 4, characterized in that: the right end of the right guide sleeve (105) is provided with a guide cylinder (111), and the right guide sleeve (105) and the guide cylinder (111) are arranged in the crank press-fitting mechanism (1) in a sliding mode.

6. A crank press-fitting apparatus according to any one of claims 1 to 5, wherein: the crank press-fitting mechanism is characterized in that a connecting column (101) is transversely arranged at the upper end of the crank press-fitting mechanism (1), a clamping block (201) is arranged at the lower end of the lifting mechanism (2), a through hole (202) matched with the connecting column (101) is formed in the clamping block (201), and the connecting column (101) penetrates through the through hole (202) to connect the crank press-fitting mechanism (1) to the lifting mechanism (2).

7. A crank press-fitting apparatus according to any one of claims 1 to 5, wherein: the supporting structure (4) comprises a plurality of vertical supporting rods (402) and a plurality of transverse supporting rods (403); the lower end of the vertical supporting rod (402) is fixed on the fixing surface, the upper end of the vertical supporting rod (402) is used for fixing the transverse supporting rod (403), the transverse supporting rod (403) is used for installing the guide rail (404), and the guide rail (404) is used for suspending the horizontal movement of the mechanism (3) on the supporting structure (4).

8. A crank press-fitting apparatus according to any one of claims 1 to 5, wherein: the suspension mechanism (3) comprises a spring balancer (303), a box-type bearing (301) and a mounting plate (304), wherein a mounting block (305) is arranged on the upper surface of the mounting plate (304), and the mounting block (305) is used for being connected with the supporting structure (4); the lower surface of the mounting plate (304) is provided with a fixing ring (306) and a vertical rod (307), the fixing ring (306) is used for connecting the spring balancer (303), and the box-type bearing (301) is arranged at the lower end of the vertical rod (307); the spring balancer (303) and the box-type bearing (301) are used for connecting the lifting mechanism (2).

9. A crank press-fitting apparatus according to any one of claims 1 to 5, wherein: the upper end and the lower end of the optical axis (203) are respectively provided with an upper clamping block (204) and a lower clamping block (205), and the upper clamping block (204) and the lower clamping block (205) are used for fixing the optical axis (203).

10. A crank press-fitting apparatus according to any one of claims 1 to 5, wherein: the upper end of the supporting structure (4) is formed with a sliding groove (401) which is horizontally arranged, the suspension mechanism (3) comprises a plurality of pulleys (302) which are matched with the sliding groove (401), and the horizontal movement of the suspension mechanism (3) on the supporting structure (4) is realized through the movement of the pulleys (302) in the sliding groove (401).