CN113291787B

CN113291787B - Conveying clamp for manufacturing battery

Info

Publication number: CN113291787B
Application number: CN202110181179.5A
Authority: CN
Inventors: 塩崎圭辅
Original assignee: Komatsu NTC Ltd
Current assignee: Komatsu NTC Ltd
Priority date: 2020-02-21
Filing date: 2021-02-09
Publication date: 2022-12-13
Anticipated expiration: 2041-02-09
Also published as: JP7470529B2; CN113291787A; JP2021136070A

Abstract

The invention provides a conveying clamp for manufacturing a battery, which can temporarily fix a battery shell by using a simple structure and improve the positioning precision. A conveying jig (1) is inserted into a battery case (3 a) from a jig opening formed in the upper surface portion of a box-shaped frame (6). A first clamping mechanism (10) and a second clamping mechanism (20) are provided in a holding section (5) inside a housing (6). The first clamp mechanism (10) and the second clamp mechanism (20) are configured to shift the left and right clamp members (11, 12) between a close (clamped state) and an open (unclamped state) in the first clamp direction (W) without tilting by a shift mechanism (40) for shifting the vertical movement of the operating body (30), and to shift the front and rear slide bases (23) between a close and an open in the front and rear second clamp direction (D).

Description

Conveying clamp for manufacturing battery

Technical Field

The invention relates to a conveying clamp for manufacturing a battery.

Background

As a conventional transport jig for manufacturing a battery, a transport jig for holding a bottomed rectangular cylindrical battery case constituting a battery when manufacturing the battery is known. The conveying jig temporarily fixes the battery case in an upright state in a recessed holding portion provided in the frame.

Then, the battery is transported in the transport path, and components as battery elements are assembled, or an electrolyte solution is injected into the battery case (see, for example, patent document 1).

After the injection, the battery case is covered with a lid body from which a metal electrode protrudes, and the battery case is sealed by welding or the like.

[ Prior art documents ]

[ patent document ]

Japanese patent laid-open publication No. 2001-57197

Disclosure of Invention

[ problem to be solved by the invention ]

In the conventional battery manufacturing transport jig, a pressing mechanism for holding the battery case is provided in order to improve the positioning accuracy of the temporarily fixed battery case at the time of assembly or sealing. The pressing direction of the pressing mechanism is preferably a pressing mechanism that presses in, for example, a front and rear direction or a left and right direction.

However, the pressing mechanism for pressing from a plurality of directions is complicated in the mechanism for transmitting the pressing force. In addition, it is conceivable to use a plurality of actuators, but the number of parts increases, and it is difficult to make the clamping time uniform.

In order to compensate for the reduction in positional accuracy due to the dimensional variation of the battery case, it is necessary to increase the strength of the frame of the conveyance jig if a spring or the like having a large repulsive force is used to exert a desired gripping force.

Therefore, the conveying jig is increased in size, and the required space in the conveying path is increased, which may lower the workability, and thus further improvement is required.

Accordingly, an object of the present invention is to provide a conveying jig for manufacturing a battery, which can improve positioning accuracy with a simple configuration.

[ solution for solving problems ]

The present invention provides a battery manufacturing transport jig, comprising: a frame body having a concave holding portion for holding the battery case of the bottomed cylindrical body; a first clamping mechanism that clamps the side surfaces of the battery case from opposite directions; a second clamping mechanism that clamps the side surface of the battery case from a direction orthogonal to the clamping direction of the first clamping mechanism; an operation body, at least a part of which is arranged in the holding part and slides; and a conversion mechanism that converts the movement of the operating body in the sliding direction into the movement of the first clamping mechanism and the movement of the second clamping mechanism in the clamping direction.

[ Effect of the invention ]

According to the present invention, a conveying jig for battery manufacturing is provided which can temporarily fix a battery case with a simple structure and improve positioning accuracy.

Drawings

Fig. 1 is a schematic front view illustrating the overall structure of a battery manufacturing transport jig according to an embodiment of the present invention.

Fig. 2 is a schematic longitudinal sectional view of the conveying jig for battery manufacturing according to the embodiment at a position along the line ii-ii in fig. 1.

Fig. 3 is a schematic front view illustrating a state in which the first clamping mechanism is in the unclamped state by the sliding movement of the operating body in the battery manufacturing transport jig according to the embodiment of the present invention.

Fig. 4 is a schematic longitudinal cross-sectional view illustrating a position corresponding to a position along the I-ii line in fig. 1 in a state where the second clamping mechanism is in the unclamped state by the sliding movement of the operating body in the battery manufacturing transport jig according to the embodiment.

[ description of reference numerals ]

1: conveying the clamp; 2: a battery pack; 3a: a battery case; 6: a frame body; 10: a first clamping mechanism; 11: a left side clamping member (first clamping member); 12: a right side clamping member (first clamping member); 20: a second clamping mechanism; 22: a base member (second clamping member); 23: a moving clamping member (second clamping member); 30: an operation body; 40: a switching mechanism.

Detailed Description

An embodiment of the present invention will be described below with reference to the drawings as appropriate. The same components are denoted by the same reference numerals, and redundant description thereof is omitted.

[ embodiment ]

Fig. 1 shows the structure of a conveying jig 1 for a battery assembly 2 according to a basic embodiment of the present invention.

In the present embodiment, the direction of the battery case 3a along the longitudinal direction of the battery case 3a is the same as the first clamping direction W in which the

first side surfaces

3f, 3f on the short sides are clamped from opposite directions. Therefore, the longitudinal direction of the battery pack 2 shown in the left-right direction in fig. 1 will be described as the first clamping direction W of the first clamping mechanism 10.

As shown in fig. 2, the direction along the short side of the battery case 3a is the same as the second clamping direction D in which the

second side surfaces

3g, 3g on the long side of the battery case 3a are clamped from opposite directions. Therefore, the short side direction of the battery pack 2 shown in the front-rear direction in fig. 2 will be described as the second clamping direction D of the second clamping mechanism 20. Therefore, the first clamping direction W and the second clamping direction D are orthogonal to each other.

The battery pack 2 of the present embodiment includes: a battery case 3a, a metal lid 3d from which

electrode terminals

3b and 3c protrude, and components as battery elements housed in the battery case 3a. The battery case 3a has a rectangular tubular shape with a bottom, which is long in the lateral direction of the longitudinal direction in the first clamping direction W.

The upper surface of the battery case 3a is formed in a substantially rectangular shape, and a battery opening is formed in the opening. In the manufacture of the battery, components as battery elements are assembled through the battery opening, the battery opening is covered with the lid 3d, and the peripheral edge is welded by laser welding or the like to seal the battery. A pair of

electrode terminals

3b and 3c is provided on the lid 3d so as to protrude upward.

In the transport jig 1 of the battery module 2 according to the present embodiment, a jig opening is formed in an upper surface portion opening of the box-shaped frame 6. The jig opening is formed in a substantially rectangular shape in plan view so that the lower portion can be temporarily fixed when the battery case 3a is inserted from above to manufacture the battery assembly 2.

Further, a recessed holding portion 5 that communicates the internal space with the external space via a jig opening is formed inside the housing 6. The holding portion 5 holds the lower portion of the battery case 3a inserted from the jig opening, and holds the battery case in an upright state with the battery opening portion on the upper portion facing upward.

[ first clamping mechanism ]

As shown in fig. 1, the holding portion 5 is provided with a first clamp mechanism 10 that performs clamping and unclamping operations by the operating body 30, and a second clamp mechanism 20 that is interlocked with the first clamp mechanism 10.

Wherein the first clamping mechanism 10 is provided with left and right

side clamping members

11, 12 as first clamping members. The left and right clamping

members

11, 12 clamp the middle position in the vertical direction of the

first side surfaces

3f, 3f of the outer side surfaces of the battery case 3a in the first clamping direction W from the left and right direction.

The left and

right clamping members

11, 12 have: left and

right slide bases

13 and 14 respectively disposed on left and right sides of the operation body 30; and abutting

surface portions

15, 16.

The left and

right slide bases

13 and 14 are formed in a rectangular parallelepiped shape with the longitudinal direction extending in the vertical direction in the holding portion 5. Contact

surface portions

15 and 16 having a substantially L shape in side view are projected from upper ends of the left and

right slide bases

13 and 14 so as to face each other in the first clamping direction W.

Further, a pair of

linear motion shafts

18, 18 and

coupling members

19, 19 are provided on the left and right clamping

members

11, 12, respectively. The

linear motion shafts

18, 18 are arranged side by side so that the axial directions thereof are along the first clamping direction W from the inner facing surfaces of the left and

right slide bases

13, 14.

The

linear motion shafts

18 and 18 of the present embodiment are arranged in parallel at a predetermined interval in the sliding direction V of the operating body 30.

Guide portions

17 and 17 for slidably guiding the respective linear motion shafts 18 are provided on the inner surface of the holding portion 5 of the housing 6. The guide portion 17 is formed with insertion holes whose communication direction is along the first clamping direction W and which are spaced apart by a predetermined interval in the up-down direction.

The

linear motion shafts

18, 18 are inserted into these insertion holes, and the left and right clamping

members

11, 12 are slidably guided in the first clamping direction W without being inclined.

Rod-

shaped coupling members

19, 19 are connected between both

distal end portions

18a, 18a of the

linear motion shafts

18, 18. Further,

spring members

50, 50 are provided between the

coupling members

19, 19 and the inner surface of the housing 6 on the side of the holding portion 5.

In the present embodiment, one end of the spring member 50 abuts against a support member 51 fixed to the frame 6. The other end of the spring member 50 abuts against the side surfaces 19a and 19a of the

coupling members

19 and 19.

Then, the left and right clamping

members

11, 12 of the first clamping mechanism 10 are biased in a direction to approach each other by the

spring members

50, 50.

Therefore, in a state where the operation force is not applied to the first clamping mechanism 10, the

first side surfaces

3f, 3f of the battery case 3a are pressed from both sides by the

abutment surface portions

15, 16 of the left and right clamping

members

11, 12 by the urging forces of the

spring members

50, 50 to become a clamped state.

When the left and right clamping

members

11, 12 are expanded in the first clamping direction W by applying an operating force to the first clamping mechanism 10, the left and right clamping

members

11, 12 are separated from each other against the urging forces of the

spring members

50, 50. The

contact surface portions

15 and 16 are separated from the

first side surfaces

3f and 3f of the battery case 3a to be in a non-clamped state.

In the first clamping mechanism 10 of the present embodiment, insertion holes of the

guide portions

17, 17 are formed in parallel. Therefore, the

linear motion shafts

18, 18 are smoothly slidably guided in the guide portions 17, so that the left and right clamping

members

11, 12 do not tilt. Therefore, the left and right clamping

members

11 and 12 can be brought into the clamped or unclamped state in the first clamping direction W, and the

abutment surface portions

15 and 16 can be brought into abutment with desired positions of the

first side surfaces

3f and 3f of the battery case 3a.

In addition, the left and right clamping

members

11, 12 do not tilt during clamping or non-clamping action. Therefore, the possibility of unnecessary wear occurring at the sliding portion is reduced, the generation of metal powder or resin powder is suppressed, and the durability is also good.

[ second clamping mechanism ]

In addition, the transport jig 1 of the present embodiment is provided with the second clamping mechanism 20, and the second clamping mechanism 20 is simultaneously operated by the operating body 30 which operates the first clamping mechanism 10. The second clamping mechanism 20 can be set to a clamped state in which the second side surfaces 3g, 3g of the battery case 3a are clamped in a second clamping direction D (see fig. 2) orthogonal to the first clamping direction W or a non-clamped state in which the second side surfaces 3g, 3g of the battery case 3a are released.

The second clamping mechanism 20 includes a second clamping member 21 that approaches or separates in the second clamping direction D, and a base member 22 that is fixed to the frame 6. These second clamping member 21 and base member 22 are provided on the front and rear sides of the battery case 3a held by the holding portion 5 in the second clamping direction D, respectively.

Wherein the second clamping member 21 has: at least a part of the arrangementA front-rear slide base 23 that is slidably moved in the second clamping direction D in the holding portion 5; and an abutting surface portion 24 projecting from the upper end portion of the front and rear slide bases 23 in the direction of the base member 22, the second clamp member 21 forming a substantially Japanese lateral view

Character shape.

Further, an abutment surface portion 25 for clamping the battery case 3a is provided to protrude inside the upper end portion of the base member 22. The

abutment surface portions

24 and 25 are configured to abut against the second side surfaces 3g and 3g from both the front and rear sides of the battery case 3a in the second clamping direction D, and to be clamped or unclamped.

Further, a pair of upper and

lower spring members

60, 60 are provided between the front and rear slide bases 23 and the inner side surface of the frame 6. One end of the spring member 60 is brought into contact with a support member 61 provided on the inner side surface of the frame 6, and the other end of the spring member 60 is brought into contact with a position corresponding to the second roller member 34 in the vertical direction of the side surface of the front and rear slide base 23.

Thereby, the spring member 60 biases the front-rear slide base 23 in the direction of the base member 22 in the second clamping direction D. Therefore, in a state where the operation force is not applied to the second clamping mechanism 20, the front and rear slide bases 23 are pressed in the second clamping direction D by the urging force of the spring member 60, and the

abutment surface portions

24 and 25 clamp the second side surfaces 3g and 3g from both the front and rear sides of the battery case 3a.

[ conversion mechanism ]

The transport jig 1 of the present embodiment is provided with a conversion mechanism 40 that causes the operating body 30 to be interlocked with the first clamping mechanism 10 and the second clamping mechanism 20. The conversion mechanism 40 converts the movement in the sliding direction V into the movement in the first clamping direction W of the first clamping mechanism 10 and the movement in the second clamping direction D of the second clamping mechanism 20.

At least one end 31a of the operating body 30 is disposed in the holding portion 5, and the other end 31b of the operating body 30 protrudes downward from the frame 6. The operating body 30 is configured to slide in the vertical sliding direction V.

The conversion mechanism 40 converts the movement of the operating body 30 in the sliding direction V into a movement in the first and second clamping directions W1 and W2 (see fig. 3) of the left and right clamping

members

11 and 12 and a movement in the second clamping direction D (see fig. 4) of the second clamping member 21.

That is, the conversion mechanism 40 of the present embodiment is configured as a cam roller mechanism, and as shown in fig. 1, the conversion mechanism 40 includes

first roller members

32, 32 that are rotatably and axially supported by the

coupling members

19, 19 of the first clamping mechanism 10, respectively.

The switching mechanism 40 has first inclined

surface portions

33 and 33 that are pressed against the first rolling

roller members

32 and 32.

The first

inclined surface portions

33, 33 are inclined so as to be away from each other in a direction orthogonal to the sliding direction V of the operating body 30, and are formed symmetrically on the

first side surfaces

30a, 30b of the first clamp mechanism 10 on the left and right slide bases 13, 14 sides, respectively.

Each first inclined surface portion 33 is formed to be inclined in a direction to expand as the operating body 30 moves upward in the sliding direction V. The first

rolling roller members

32, 32 are rollably brought into contact with the first

inclined surface portions

33, 33.

As shown in fig. 2, the conversion mechanism 40 includes: a second rolling roller member 34 provided at the second clamping member 21 of the second clamping mechanism 20; and a second inclined surface portion 35 formed on a second side surface 30c of the operating body 30 on the second clamping mechanism 20 side.

Second inclined surface portion 35 is formed to be inclined so as to be separated in a direction orthogonal to sliding direction V of operation body 30. Further, the second rolling roller member 34 is axially supported by the lower end portion of the second pinching member 21 in the holding portion 5.

Further, the second rolling roller member 34 is rollably abutted with the second inclined surface portion 35.

The operation body 30 of the present embodiment is formed in a rectangular parallelepiped shape, and the first side surfaces 30a and 30b of the operation body 30 are located at symmetrical positions on opposite sides with respect to the center axis of the sliding direction V. The first side surfaces 30a and 30b and the second side surface 30c are provided so as to be orthogonal to each other in the out-of-plane direction.

First

inclined surface portions

33, 33 are formed at the same vertical position in the longitudinal direction (sliding direction V) of operation body 30. Second inclined surface portion 35 is formed at a lower position in the longitudinal direction of operation body 30 than first

inclined surface portions

33 and 33.

In the present embodiment, the positions of the first

inclined surface portions

33, 33 and the second inclined surface portion 35 in the sliding direction V are set so as to obtain synchronization of the cam roller mechanisms as follows: as shown in fig. 3, at the vertical position of the operating body 30 where the first

inclined surface portions

33, 33 abut against the first rolling

roller members

32, 32 and start to expand the first pinching mechanism 10 in the first pinching direction W, as shown in fig. 4, the second inclined surface portion 35 comes into abutment against the second rolling roller member 34 and starts to expand the second pinching member 21 in the second pinching direction D.

Next, the operation and effect of the transport jig 1 for the battery module 2 according to the embodiment will be described.

The conveying jig 1 of the embodiment can temporarily fix the battery case 3a with a simple structure and improve the positioning accuracy with respect to the conveying jig 1.

Specifically, when the operating body 30 is moved upward in the sliding direction V from the clamped state shown in fig. 1 and 2, the left and right clamping

members

11 and 12 of the first clamping mechanism 10 are spread apart against the biasing forces of the

spring members

50 and 60, and the second clamping member 21 of the second clamping mechanism 20 is released rearward in the second clamping direction D.

Therefore, as shown in fig. 3 and 4, the conveying jig 1 is in the unclamped state.

When the operating body 30 is moved downward in the sliding direction V, the left and right clamping

members

11 and 12 of the first clamping mechanism 10 are closed by the biasing forces of the

spring members

50 and 60, and the second clamping member 21 of the second clamping mechanism 20 is moved forward in the second clamping direction D, so that the battery case 3a is clamped between the first side surfaces 3f and the second side surfaces 3g and 3g, as shown in fig. 1 and 2.

Thus, the conversion mechanism 40 converts the movement of the operating body 30 in the sliding direction V into the movement in the first clamping direction W that expands the left and right clamping

members

11, 12 of the first clamping mechanism 10. At the same time, the movement of the operating body 30 in the sliding direction V is converted into a movement for releasing the second clamping member 21 of the second clamping mechanism 20 rearward in the second clamping direction D.

Therefore, the other end portion 31b of the operating body 30 can be set to the unclamped state by simply moving it upward in the sliding direction V, and the battery case 3a in the holding portion 5 can be inserted or removed from above through the jig opening of the conveying jig 1.

In a state where the battery case 3a is inserted into the holding portion 5 as shown in fig. 3 and 4, the operating body 30 is moved downward in the sliding direction V as shown in fig. 1 and 2.

The left and right clamping

members

11, 12 of the first clamping mechanism 10 are urged by

spring members

50, 50.

Therefore, the left and right pinching

members

11 and 12 move in the approaching direction along the first pinching direction W in accordance with the downward retraction of the operating body 30. The

contact surface portions

15 and 16 contact and hold the

first side surfaces

3f and 3f of the battery case 3a from both sides.

At this time, in the present embodiment, the

contact surface portions

15 and 16 are pressed against the

first side surfaces

3f and 3f of the battery case 3a by the

spring members

50 and 50. Therefore, the battery case 3a is reliably positioned and fixed in the first clamping direction W.

In the first clamping mechanism 10 of the present embodiment, a pair of

guide portions

17 and 17 are provided on the inner surface of the holding portion 5 of the housing 6. The guide portion 17 has an insertion hole formed therein so that the communication direction is parallel to the first clamping direction W at a predetermined interval in the vertical direction.

Further, in the pair of guide portions 17,

linear shafts

18, 18 arranged side by side in the axial direction along the first clamping direction W are slidably guided from the facing surfaces of the left and right slide bases 13, 14.

The

tip end portions

18a, 18a of the

linear shafts

18, 18 are connected to each other by a connecting member 19. The first rolling roller member 32 serving as a pressing point of the conversion mechanism 40 is pivotally supported by the coupling member 19.

Therefore, the biasing force used for unclamping, which is transmitted from the operating body 30 to the roller member 32 via the first inclined surface portion 33, is applied between the pair of

linear shafts

18, 18 in a well-balanced manner, and clamping and unclamping operations can be performed while keeping the left and right slide bases 13, 14 parallel.

In the present embodiment, the first rolling

roller members

32, 32 are in contact with the first

inclined surface portions

33, 33 so as to roll. Further, the second rolling roller member 34 is in contact with the second inclined surface portion 35 so as to roll. Therefore, there is no sliding contact portion between the clamping and unclamping operations. Therefore, the first and second rolling

roller members

32 and 34 having a rotation resistance smaller than the sliding resistance can be operated smoothly.

The left and right slide bases 13 and 14 are kept parallel to each other. Therefore, the positional accuracy of the battery case 3a in the clamped state can be further improved. Thus, the conveying jig 1 of the present embodiment improves the work accuracy when conveying and assembling the components as the battery elements in the conveying path.

As shown in fig. 2, when the operating body 30 is moved downward in the sliding direction V, the second clamping member 21 of the second clamping mechanism 20 is moved forward in the second clamping direction D and abuts against the second side surface 3g of the battery case 3a.

Therefore, the battery case 3a can be inserted into the holding portion 5 from above or removed from the holding portion 5 through the jig opening of the conveying jig 1.

Further, the contact surface portion 24 that is in contact with the second side surface 3g of the battery case 3a is biased toward the contact surface portion 25 of the base member 22 by the spring member 60 toward the battery case 3a. Therefore, the battery case 3a is also reliably positioned and fixed in the second clamping direction D.

In this way, in the transport jig 1 of the present embodiment, the operating body 30 is moved downward, whereby the battery case 3a is clamped by the first clamping mechanism 10 and the second clamping mechanism 20 from two orthogonal directions. When the operating body 30 is moved upward, the first clamping mechanism 10 and the second clamping mechanism 20 are simultaneously released, and the battery case 3a can be mounted in or removed from the battery case. Therefore, the operability is good.

In addition, the first and

second side surfaces

3f, 3g of the battery case 3a are clamped by the first clamping mechanism 10 and the second clamping mechanism 20 from four directions. Therefore, even without using a spring member of a large repulsive force, the battery case 3a can be temporarily fixed sufficiently stably.

The base member 22 of the second clamping mechanism 20 is fixed to the frame 6. Therefore, the conveying jig 1 for the battery assembly 2 is provided, which can easily set a reference position for positioning and can improve positioning accuracy.

Further,

first side surface

30a or 30b provided with first inclined surface portion 33 shown in fig. 1 and second side surface 30c provided with second inclined surface portion 35 shown in fig. 2 are provided on rectangular parallelepiped operation body 30 so as to be orthogonal to each other.

Therefore, even if the first rolling

roller members

32, 32 and the second rolling roller member 34 are disposed at vertically different positions in the sliding direction V depending on the installation space, the first inclined surface portion 33 and the second inclined surface portion 35 can be brought into contact with each other at the same timing, thereby simultaneously performing pinching and non-pinching.

Therefore, in this aspect, it is not necessary to provide an actuator or a transmission mechanism separately, and thus the battery case 3a can be temporarily fixed with a simple structure, and the positioning accuracy can be improved.

Further, the structure inside the housing 6 can be simplified. Therefore, the outer dimension of the frame 6 is not increased, the conveying jig 1 is downsized, and the required space in the conveying path is not increased.

That is, in the switching mechanism 40, the first clamping mechanism 10 and the second clamping mechanism 20 that clamp from different directions can be simultaneously operated by moving the single operating body 30 in the sliding direction V.

Further, the other end portion 31b of the operating body 30 protruding from the bottom surface side of the frame body 6 is moved in the sliding direction V, whereby the battery case 3a can be clamped or unclamped from a plurality of directions. Therefore, the operation can be performed using an actuator or the like provided outside the housing 6, and the space utilization efficiency and the operability are good.

Although the present invention has been described above based on the embodiments, the present invention is not limited to the configurations described in the above embodiments. The present invention includes configurations obtained by appropriately combining or selecting the configurations described in the above embodiments, and the configurations can be appropriately changed without departing from the scope of the present invention. In addition, a part of the configurations of the above embodiments may be added, deleted, or added and replaced with another configuration. Possible modifications to the above-described embodiment are shown below, for example.

In the transport jig 1 of the battery pack 2 of the present embodiment, the description has been given using the linear cam roller mechanism as the conversion mechanism, but the present invention is not particularly limited to this, and for example, a configuration may be adopted in which the inclined surface is brought into sliding contact with the first inclined surface portion 33 instead of the first rolling roller member, and any combination of transmission elements may be used if the conversion mechanism converts the movement of the operation body in the sliding direction into the movements of the first and second clamping directions W and D of the first clamping mechanism 10 and the second clamping mechanism 20. That is, the shape, number, and material of the conversion mechanism are not particularly limited.

Claims

1. A conveying jig for manufacturing a battery is characterized by comprising:

a frame body having a concave holding portion for holding the battery case having the bottomed cylindrical body;

a first clamping mechanism that clamps the side surfaces of the battery case from opposite directions;

a second clamping mechanism that clamps a side surface of the battery case from a direction orthogonal to a clamping direction of the first clamping mechanism;

an operation body, at least a part of which is arranged in the holding part and slides; and

a conversion mechanism that converts a movement of the operating body in a sliding direction into a movement of the first clamping mechanism and a movement of the second clamping mechanism in a clamping direction,

the conversion mechanism is a translation cam roller mechanism having:

a first rolling roller member provided to the first clamping mechanism;

a second rolling roller member provided to the second clamping mechanism;

a first inclined surface portion which is provided on a side surface of the operating body on the first clamping mechanism side, is inclined in a direction orthogonal to a sliding direction of the operating body, and abuts against the first rolling roller member; and

a second inclined surface portion provided on a side surface of the operating body on the second clamping mechanism side, inclined in a direction orthogonal to the sliding direction of the operating body, and abutting against the second rolling roller member,

the first clamping mechanism includes a pair of left and right side clamping members provided on both sides of the operating body in a clamping direction,

the left and right side clamping members have:

a pair of linear moving shafts arranged side by side in a sliding direction of the operating body; and

a connecting member for connecting the pair of linear shafts and axially supporting the first rolling roller member,

the battery manufacturing transport jig is provided with a guide portion that guides the linear shaft and moves the left and right clamping members in the clamping direction.

2. The conveying jig for battery production as set forth in claim 1,

the coupling member is provided with a spring member that biases the left and right clamping members in a direction to clamp the side surface of the battery case.

3. The conveying jig for battery production according to claim 1 or 2,

the operation body is formed in a rectangular parallelepiped shape, and a first side surface provided with the first inclined surface portion is orthogonal to a second side surface provided with the second inclined surface portion.