CN207792608U - A kind of forward and backward goods shelf workbench - Google Patents

Abstract

The utility model is related to fork truck accessory processing technique fields, disclose a kind of forward and backward goods shelf workbench, including crossbeam and the support base for being separately positioned on crossbeam both ends；It is symmetrical arranged above the crossbeam there are two rear goods shelf positioning device, goods shelf positioning device before below the crossbeam is provided with；Since a fork truck includes goods shelf after a preceding goods shelf and two, so goods shelf is a set of after a preceding goods shelf and two, and the utility model can fix goods shelf after a preceding goods shelf and two simultaneously, to process a set of forklift fork arm carrier equipment simultaneously, it is opposite with the mode that individually can only fix and process preceding goods shelf or rear goods shelf, it reduces and exchanges, overturns number, greatly improve working efficiency.

Description

A kind of forward and backward goods shelf workbench

Technical field

The utility model is related to fork truck accessory processing technique fields, and in particular to a kind of forward and backward goods shelf workbench.

Background technology

Current forward and backward goods shelf is the component part of fork truck working device.Fork truck working device is forklift lifting cargo Mainly there are inner upright mounting, outer mast, front and back goods shelf, sprocket wheel, chain, lift cylinder and dump ram in mechanism, also known as forklift door frame Deng composition.Wherein, forward and backward goods shelf is mainly used for holding cargo.

Prior art, which takes forward and backward goods shelf to be laid on mill floor, carries out welding or deburring work, adjusts When changing upper and lower working face, lifted using driving or professional suspender.Also another scheme：Forward and backward goods shelf is fixed on On electric turnover work top, the displacement of goods shelf is realized by the overturning of workbench.Since a fork truck includes a preceding goods Goods shelf after crotch and two, so goods shelf is a set of after a preceding goods shelf and two, a set of forward and backward goods shelf of processing needs It by the overturning of forward and backward goods shelf, exchanges repeatedly, time-consuming and laborious, working efficiency is low.

Utility model content

Based on the above technical problem, the utility model provides a kind of forward and backward goods shelf workbench, existing to solve Technology processes a set of forward and backward goods shelf and needs the overturning of forward and backward goods shelf, exchanges multiple, time-consuming and laborious, ineffective skill Art problem.

The technical solution adopted in the utility model is as follows：

A kind of forward and backward goods shelf workbench, including crossbeam and the support base for being separately positioned on crossbeam both ends；On the crossbeam Side is symmetrical arranged there are two rear goods shelf positioning device, goods shelf positioning device before below the crossbeam is provided with.

In conclusion by adopting the above-described technical solution, the utility model has the beneficial effects that：Due to a fork truck packet Goods shelf after a preceding goods shelf and two is included, so goods shelf is a set of after a preceding goods shelf and two, and this practicality is newly Type can fix goods shelf after a preceding goods shelf and two simultaneously, to process a set of forklift fork arm carrier equipment simultaneously, relatively With the mode that individually can only fix and process preceding goods shelf or rear goods shelf, reduces and exchange, overturn number, greatly improve work Make efficiency.

Preferably, the crossbeam is provided with T-slot, and T-slot length direction is parallel with crossbeam length direction, the rear pallet fork Frame positioning device and preceding goods shelf positioning device bottom are caught in T-slot, can be moved along T-slot length direction, to not only Can be easy for installation and removal workpiece, and can make workpiece of the utility model suitable for different length；

Preferably, the rear goods shelf positioning device includes that rear goods shelf front plate fixer and rear goods shelf pipe are fixed Rear goods shelf foreboard after fixation when goods shelf, can be fixed by rear goods shelf front plate fixer, passes through rear goods by device Crotch Circular tube fixer fixes rear goods shelf cylindrical parts, so as to preferably fix rear goods shelf；

Preferably, goods shelf front plate fixer includes being arranged in first pressing plate on crossbeam top and setting the after described First handwheel on one pressing plate top and the first T-type screw rod through the first pressing plate and the first handwheel, the first T-type screw rod and first Handwheel is threadedly coupled；The bolt head of first T-type screw rod is caught in inside T-slot, and the first pressing plate can compress rear goods shelf foreboard, And the rear goods shelf of different-thickness can be clamped；Adjusted by the first handwheel it is not only easy to adjust, but also can be with when adjusting Preferably have an effect, it is easy to use；

Preferably, goods shelf Circular tube fixer includes arc pressuring plate after described and one end is caught in support column in T-slot, Arc pressuring plate and support are column articulated；Afterwards goods shelf Circular tube fixer further include the second T-type screw rod and with the second T-type screw flight Second handwheel of connection, the bolt head of the second T-type screw rod are caught in inside T-slot；Second T-type screw rod and the cooperation of the second handwheel, can Arc pressuring plate one end is compressed, since rear goods shelf pipe is not allowed to be fixed easily, and arc pressuring plate and the second handwheel and the second T-type Screw rod coordinate, goods shelf after being not only easy for installation and removal, and can be by adjusting support column and the second T-type screw rod before Distance and the angle of arc pressuring plate rotation come be suitable for it is various sizes of after goods shelf pipe；

Preferably, the crossbeam both sides are symmetrically arranged with rear goods shelf holding device, and rear goods shelf holding device level is set It sets and length direction is vertical with crossbeam length direction；Goods shelf holding device includes pedestal and is connect with whorl of base after described Rear goods shelf can be fixed, be avoided in process by top-fastening rod, rear goods shelf holding device, and rear goods shelf is in the horizontal direction It moves, leads to centre-of gravity shift, influence to overturn precision；

Preferably, the preceding goods shelf positioning device includes fixed in the middle part of preceding goods shelf boundary fixing device and preceding goods shelf Fixing device is both provided with two groups and is symmetrical arranged, preceding pallet fork in the middle part of device, preceding goods shelf boundary fixing device and preceding goods shelf Frame boundary fixing device, which fixes preceding goods shelf boundary, avoids preceding goods shelf from being moved along crossbeam length direction, and in vertical direction Preceding goods shelf is fixed, goods shelf is fallen before avoiding, and fixing device can further drag preceding goods shelf in the middle part of preceding goods shelf Firmly, goods shelf is fallen in rotation process before avoiding；

Preferably, the preceding goods shelf boundary fixing device include first before goods shelf clamping jaws and be arranged before first Below goods shelf clamping jaws first before goods shelf binding nut and before first before goods shelf clamping jaws and first The third T-type screw rod of goods shelf binding nut, third T-type screw rod are threadedly coupled with goods shelf binding nut before first；3rd T The bolt head of type screw rod is caught in inside T-slot, and preceding goods shelf boundary fixing device can move, and by passing through third T-type Goods shelf clamping jaws before goods shelf binding nut fixes first before screw rod and first, so as to the preceding goods of fixed different model Crotch；

Preferably, goods shelf clamping jaws are located at goods shelf holding device before crossbeam side is provided with before described first, preceding Goods shelf holding device includes the sliding panel that goods shelf clamping jaws both ends are arranged before first, and sliding panel is provided with positioned inside Withstanding tight block for goods shelf before holding out against；It is provided with sliding slot in the middle part of the sliding panel, goods shelf before track length direction and first Clamping jaws length direction is parallel；The sliding panel is flexibly connected with goods shelf clamping jaws before first by bolt assembly, After preceding goods shelf boundary fixing device fixes preceding goods shelf, the both sides of goods shelf before withstanding tight block is fixed on, so as to keep away Exempt from process, preceding goods shelf moves in the horizontal direction, and leads to centre-of gravity shift, influences to overturn precision；

Preferably, fixing device includes the second pressing plate and the third that is arranged below the second pressing plate in the middle part of the preceding goods shelf Handwheel and the 4th T-type screw rod through the second pressing plate and third handwheel, the 4th T-type screw rod are threadedly coupled with third handwheel；The The bolt head of four T-type screw rods is caught in inside T-slot, so as to fixed different model, the preceding goods shelf of different-thickness.

Description of the drawings

Fig. 1 is the utility model I-girder schematic diagram；

Fig. 2 is the utility model Fig. 1 vertical views；

Fig. 3 is A-A sectional views in the utility model Fig. 1；

Fig. 4 is goods shelf schematic diagram after the utility model；

Fig. 5 is the utility model Fig. 4 vertical views；

Fig. 6 is goods shelf schematic diagram before the utility model；

Fig. 7 is the utility model Fig. 6 vertical views；

Fig. 8 is goods shelf schematic diagram after the utility model is fixed；

Fig. 9 is the utility model Fig. 8 vertical views；

Figure 10 is goods shelf schematic diagram before the utility model is fixed；

Figure 11 is the utility model Figure 10 vertical views；

Figure 12 is goods shelf clamping jaws schematic diagram before the utility model first；

Figure 13 is the utility model Figure 12 side views；

Figure 14 is the preceding goods shelf schematic diagram of goods shelf clamping jaws fixation before the utility model first；

It is marked in figure：1-I word beams, 2- crossbeams, 3- support bases, 4- clamping devices, 5-T type grooves, goods shelf positioning dress after 6- It sets, the first pressing plates of 7-, the first handwheels of 8-, 9- the first T-type screw rods, 10- arc pressuring plates, 11- support columns, 12- the second T-type screw rods, The second handwheels of 13-, goods shelf holding device after 14-, 15- pedestals, 16- top-fastening rods, goods shelf positioning device before 17-, 18- first Preceding goods shelf clamping jaws, goods shelf binding nut before 19- first, 20- third T-type screw rods, goods shelf holding device before 21-, 22- sliding panels, 23- withstanding tight blocks, 24- sliding slots, the second pressing plates of 25-, 26- third handwheels, the 4th T-type screw rods of 27-, 28- driving heads Frame, the driven tailstocks of 29-, goods shelf before 30-, goods shelf after 31-.

Specific implementation mode

All features disclosed in this specification can be with any other than mutually exclusive feature and/or step Mode combines.

It elaborates below in conjunction with the accompanying drawings to the utility model.

As shown in Figure 1 and Figure 2, a kind of 31 workbench of forward and backward goods shelf includes I-girder 1, and I-girder 1 includes crossbeam 2 and setting The width of support base 3 at 2 both ends of crossbeam, the crossbeam 2 is 100mm-200mm；Being provided on the crossbeam 2 can be along crossbeam 2 The clamping device 4 of sliding.

As shown in figure 3, the crossbeam 2 is provided with T-slot 5,5 length direction of T-slot is parallel with 2 length direction of crossbeam, institute It states 4 bottom of clamping device to be caught in T-slot 5, can be moved along 5 length direction of T-slot.

As shown in Figure 1 and Figure 2, the clamping device 4 includes the rear goods shelf positioning device 6 being arranged above crossbeam 2；Institute It states rear goods shelf positioning device 6 and is symmetrically arranged with two groups；Goods shelf positioning device 6 includes that rear goods shelf foreboard fixes dress after described It sets and rear goods shelf Circular tube fixer.

Goods shelf front plate fixer includes being arranged in first pressing plate 7 on 2 top of crossbeam and setting in the first pressure after described First handwheel 8 on 7 top of plate and the first T-type screw rod 9 through the first pressing plate 7 and the first handwheel 8, the first T-type screw rod 9 and One handwheel 8 is threadedly coupled；The bolt head of first T-type screw rod 9 is caught in inside T-slot 5.

Goods shelf Circular tube fixer includes arc pressuring plate 10 afterwards and one end is caught in support column 11 in T-slot 5, arc pressure Plate 10 is hinged with support column 11；Afterwards goods shelf Circular tube fixer further include the second T-type screw rod 12 and with 12 spiral shell of the second T-type screw rod Second handwheel 13 of line connection, the bolt head of the second T-type screw rod 12 are caught in inside T-slot 5；Second T-type screw rod 12 and second-hand 13 cooperation of wheel, can compress 10 one end of arc pressuring plate.

2 both sides of the crossbeam are symmetrically arranged with rear goods shelf holding device 14, and rear goods shelf holding device 14 is horizontally disposed And length direction is vertical with 2 length direction of crossbeam；After described goods shelf holding device 14 include pedestal 15 and with 15 screw thread of pedestal The top-fastening rod 16 of connection.

The clamping device 4 further includes the preceding goods shelf positioning device 17 being arranged below crossbeam 2, and the preceding goods shelf is fixed Position device 17 includes fixing device in the middle part of preceding goods shelf boundary fixing device and preceding goods shelf, preceding goods shelf boundary fixing device It is both provided with two groups with fixing device in the middle part of preceding goods shelf and is symmetrical arranged.

As shown in Figure 12 and Figure 13, the preceding goods shelf boundary fixing device includes 18 He of goods shelf clamping jaws before first Goods shelf binding nut 19 and through goods shelf before first before being arranged before first first below goods shelf clamping jaws 18 The third T-type screw rod 20 of goods shelf binding nut 19 before clamping jaws 18 and first, goods shelf before third T-type screw rod 20 and first Binding nut 19 is threadedly coupled；The bolt head of third T-type screw rod 20 is caught in inside T-slot 5.

Goods shelf clamping jaws 18 are located at goods shelf holding device 21, preceding goods before 2 side of crossbeam is provided with before described first Crotch holding device 21 includes the sliding panel 22 that 18 both ends of goods shelf clamping jaws are arranged before first, and sliding panel 22 is located inside It is provided with the withstanding tight block 23 for goods shelf before holding out against 30；22 middle part of the sliding panel is provided with sliding slot 24,24 length side of sliding slot To parallel with 18 length direction of goods shelf clamping jaws before first；Goods shelf clamping jaws 18 are logical before the sliding panel 22 and first Cross bolt assembly flexible connection.

It pressing plate 25 and the third that is arranged below the second pressing plate 25 that 30 middle part fixing device of the preceding goods shelf, which includes second, Handwheel 26 and the 4th T-type screw rod 27 through the second pressing plate 25 and third handwheel 26, the 4th T-type screw rod 27 and third handwheel 26 It is threadedly coupled；The bolt head of 4th T-type screw rod 27 is caught in inside T-slot 5.

As illustrated in figs. 8-11, the I word beam 1 is provided at both ends with overturning drive device；The overturning drive device includes master Dynamic head frame 28 and driven tailstock 29；Driving head frame 28 and driven tailstock 29 are flexibly connected with support base 3 respectively；Driving head frame 28 Inside it is provided with the overturning system that driving I-girder 1 rotates.Overturning system includes ac three-phase asynchronous motor and different with three-phase alternating current The worm reducer of step motor connection and the pivoting support being connect with worm reducer, revolving support are connect with support base 3.

The operation principle of the utility model is：Need fixed preceding goods shelf 30 as shown in Figure 6, Figure 7, need it is fixed after Goods shelf 31 is as shown in Figure 8, Figure 9, when fixed, as shown in Figure 1, crossbeam 2 is turned into horizontality by overturning system, makes Goods shelf positioning device 6 is located at top afterwards, and goods shelf positioning device 6 after movement, rear goods shelf positioning device 6 is divided as needed It is not arranged in the both sides for needing fixed rear goods shelf 31, rear goods shelf 31 is then placed on by cross by suspender as shown in Figure 8 On beam 2,31 center of gravity of rear goods shelf is made to be consistent with crossbeam 2, then the first pressing plate 7 is pressed on 31 boundary of rear goods shelf, turned Dynamic first handwheel 8 fixes the first pressing plate 7 with rear goods shelf 31；Then arc pressuring plate 10 is pressed at 31 pipe of rear goods shelf, The second handwheel 13 is rotated, arc pressuring plate 10 and 31 pipe of rear goods shelf are fixed；It is last to be pushed up as shown in figure 9, rotating two respectively Tight bar 16, makes top-fastening rod 16 be fixed with 31 medial surface of rear goods shelf, goods shelf 31 after one is fixed on the utility model at this time On；Then 31 symmetric position of goods shelf after being fixed on by another rear goods shelf 31 through the above steps and is fixed, at this time Goods shelf 31 after two is fixed on the utility model；

I-girder 1 is rotated by overturning system, goods shelf positioning device 17 is located above before making, as needed goods before movement Preceding goods shelf positioning device 17 is separately positioned on the both sides for needing fixed preceding goods shelf 30, rotation by crotch positioning device 17 Third handwheel 26 removes the second pressing plate 25, and then preceding goods shelf 30 is placed on crossbeam 2 by suspender, makes preceding goods shelf 30 centers of gravity are consistent with crossbeam 2, and then as shown in Figure 10, Figure 11, goods shelf 30 is far from horizontal before the second pressing plate 25 is fixed on 2 side of beam, and fixed by third handwheel 26, goods shelf 30 is fallen before avoiding；Goods shelf binding nut 19 before rotation first, makes Goods shelf clamping jaws 18 compress 30 boundary of preceding goods shelf before first, and as shown in Figure 11, Figure 14, make sliding panel 22 along cunning Slot 24 moves, and 30 left and right sides of goods shelf, then fixes sliding panel 22 before so that withstanding tight block 23 is fixed on；

Goods shelf 31 after a preceding goods shelf 30 and two is finally also secured to I-girder 1, is passed through in process Overturning system rotates I-girder 1, not only reduces the use of suspender, saves the lifting time, improves efficiency, increase Safety；1 workbench of I-girder considerably reduces shielded area of the workbench to workpiece, reduces secondary clamping, improves work Make efficiency；Since a fork truck includes goods shelf 31 after a preceding goods shelf 30 and two, so a preceding goods shelf 30 and two Goods shelf 31 is a set of after a, and the utility model can fix goods shelf 31 after a preceding goods shelf 30 and two simultaneously, from And process a set of forklift fork arm carrier equipment simultaneously, it is opposite with individually can only fix and process preceding goods shelf 30 or afterwards goods shelf 31 Mode greatly improves working efficiency.

In the following, being described in further details in conjunction with specific embodiments to the utility model.

Specific embodiment

Embodiment 1

A kind of 31 workbench of forward and backward goods shelf, including crossbeam 2 and the support base 3 for being separately positioned on 2 both ends of crossbeam；It is described 2 top of crossbeam is symmetrical arranged there are two rear goods shelf positioning device 6, goods shelf positioning device 17 before 2 lower section of crossbeam is provided with.

Embodiment 2

The present embodiment is advanced optimized based on embodiment 1, and the crossbeam 2 is provided with T-slot 5,5 length direction of T-slot Parallel with 2 length direction of crossbeam, the rear goods shelf positioning device 6 and preceding 17 bottom of goods shelf positioning device are caught in T-slot 5 It is interior, it can be moved along 5 length direction of T type grooves, to the workpiece that can not only be easy for installation and removal, but also this practicality can be made new Type is suitable for the workpiece of different length.

Embodiment 3

The present embodiment is advanced optimized based on embodiment 2, and the rear goods shelf positioning device 6 includes rear goods shelf foreboard Fixing device and rear goods shelf Circular tube fixer after fixation when goods shelf 31, can be fixed by rear goods shelf foreboard and be filled It sets and fixes 31 foreboard of rear goods shelf, fixed 31 cylindrical parts of rear goods shelf by rear goods shelf Circular tube fixer, to Preferably rear goods shelf 31 can be fixed.

Embodiment 4

The present embodiment is advanced optimized based on embodiment 3, and the rear goods shelf front plate fixer includes being arranged in cross First pressing plate 7 on 2 top of beam and be arranged 7 top of the first pressing plate the first handwheel 8 and run through the first pressing plate 7 and the first handwheel 8 the first T-type screw rod 9, the first T-type screw rod 9 are threadedly coupled with the first handwheel 8；The bolt head of first T-type screw rod 9 is caught in T-type Inside slot 5, the first pressing plate 7 can compress 31 foreboard of rear goods shelf, and can clamp the rear goods shelf 31 of different-thickness；It is logical It is not only easy to adjust to cross the adjusting of the first handwheel 8, but also can preferably have an effect when adjusting, it is easy to use.

Embodiment 5

The present embodiment is advanced optimized based on embodiment 3, and the rear goods shelf Circular tube fixer includes arc pressuring plate 10 and one end be caught in the support column 11 in T-slot 5, arc pressuring plate 10 is hinged with support column 11；Goods shelf Circular tube fixer afterwards The second handwheel 13 for further including the 2nd T types screw rod 12 and being threadedly coupled with the second T-type screw rod 12, the bolt of the second T-type screw rod 12 Head is caught in inside T-slot 5；Second T-type screw rod 12 and the cooperation of the second handwheel 13, can compress 10 one end of arc pressuring plate, due to rear 31 pipe of goods shelf is not allowed to be fixed easily, and arc pressuring plate 10 and the cooperation of the second handwheel 13 and the second T-type screw rod 12, not only facilitates Goods shelf 31 after installation and removal, and can by adjusting support column 11 before the second T-type screw rod 12 at a distance from and arc The angle that shape pressing plate 10 rotates be suitable for it is various sizes of after goods shelf 31 pipe.

Embodiment 6

The present embodiment is based on any one of embodiment 1-4 and advanced optimizes, and 2 both sides of the crossbeam are symmetrically arranged with rear goods Crotch holding device 14, rear goods shelf holding device 14 is horizontally disposed and length direction is vertical with 2 length direction of crossbeam；After described Goods shelf holding device 14 includes pedestal 15 and the top-fastening rod 16 being threadedly coupled with pedestal 15, and rear goods shelf holding device 14 can It to fix rear goods shelf 31, avoids in process, rear goods shelf 31 moves in the horizontal direction, causes center of gravity inclined It moves, influences to overturn precision.

Embodiment 7

The present embodiment is advanced optimized based on embodiment 2, and the preceding goods shelf positioning device 17 includes preceding goods shelf side Fixing device is equal in the middle part of fixing device in the middle part of boundary's fixing device and preceding goods shelf, preceding goods shelf boundary fixing device and preceding goods shelf It is provided with two groups and is symmetrical arranged, preceding goods shelf boundary fixing device, which fixes 30 boundary of preceding goods shelf, avoids preceding 30 edge of goods shelf The movement of 2 length direction of crossbeam, and fixes preceding goods shelf 30 in vertical direction, goods shelf 30 is fallen before avoiding, and preceding pallet fork Fixing device can further hold preceding goods shelf 30 in the middle part of frame, and goods shelf 30 is fallen in rotation process before avoiding.

Embodiment 8

The present embodiment is advanced optimized based on embodiment 7, the preceding goods shelf, 0 boundary fixing device include first before Goods shelf clamping jaws 18 and be arranged before first below goods shelf clamping jaws 18 first before goods shelf binding nut 19 with And before goods shelf clamping jaws 18 and first before first goods shelf binding nut 19 third T-type screw rod 20, third T-type spiral shell Bar 20 is threadedly coupled with goods shelf binding nut 19 before first；The bolt head of third T-type screw rod 20 is caught in inside T-slot 5, preceding goods Crotch boundary fixing device can move, and by solid by goods shelf binding nut 19 before third T-type screw rod 20 and first Goods shelf clamping jaws 18 before fixed first, so as to the preceding goods shelf 30 of fixed different model.

Embodiment 9

The present embodiment is advanced optimized based on embodiment 8, and goods shelf clamping jaws 18 are located at crossbeam 2 one before described first Goods shelf holding device 21 before side is provided with, preceding goods shelf holding device 21 include that goods shelf clamping jaws 18 are arranged before first The sliding panel 22 at both ends, sliding panel 22 are located inside and are provided with withstanding tight block 23 for goods shelf before holding out against 30；The sliding panel 22 middle parts are provided with sliding slot 24, and 24 length direction of sliding slot is parallel with 18 length direction of goods shelf clamping jaws before first；The cunning Movable plate 22 is flexibly connected with goods shelf clamping jaws 18 before first by bolt assembly, preceding goods shelf boundary fixing device will before After goods shelf 30 is fixed, the both sides of goods shelf 30, preceding so as to avoid in process before withstanding tight block 23 is fixed on Goods shelf 30 moves in the horizontal direction, and leads to centre-of gravity shift, influences to overturn precision.

Embodiment 10

The present embodiment is based on any one of embodiment 7-9 and advanced optimizes, fixing device packet in the middle part of the preceding goods shelf It includes the second pressing plate 25 and the third handwheel 26 being arranged below the second pressing plate 25 and runs through the second pressing plate 25 and third handwheel 26 The 4th T-type screw rod 27, the 4th T-type screw rod 27 is threadedly coupled with third handwheel 26；The bolt head of 4th T-type screw rod 27 is caught in T Inside type groove 5, so as to fixed different model, the preceding goods shelf 30 of different-thickness.

It is the embodiments of the present invention as described above.The utility model is not limited to the above embodiment, anyone It should learn the structure change made under the enlightenment of the utility model, it is every that there is same or similar skill with the utility model Art scheme, each falls within the scope of protection of the utility model.

Claims (10)

1. a kind of forward and backward goods shelf workbench, including crossbeam (2) and the support base (3) for being separately positioned on crossbeam (2) both ends；Its It is characterized in that：Rear goods shelf positioning device (6) there are two being symmetrical arranged above the crossbeam (2), before crossbeam (2) lower section is provided with Goods shelf positioning device (17).

2. forward and backward goods shelf workbench according to claim 1, it is characterised in that：The crossbeam (2) is provided with T-slot (5), T-slot (5) length direction is parallel with crossbeam (2) length direction, and the rear goods shelf positioning device (6) and preceding goods shelf are fixed Position device (17) bottom is caught in T-slot (5), can be moved along T-slot (5) length direction.

3. forward and backward goods shelf workbench according to claim 2, it is characterised in that：Goods shelf positioning device (6) after described Including rear goods shelf front plate fixer and rear goods shelf Circular tube fixer.

4. forward and backward goods shelf workbench according to claim 3, it is characterised in that：Goods shelf foreboard fixes dress after described Set including be arranged crossbeam (2) top the first pressing plate (7) and be arranged the first pressing plate (7) top the first handwheel (8) and Through the first T-type screw rod (9) of the first pressing plate (7) and the first handwheel (8), the first T-type screw rod (9) and the first handwheel (8) screw thread Connection；It is internal that the bolt head of first T-type screw rod (9) is caught in T-slot (5).

5. forward and backward goods shelf workbench according to claim 3, it is characterised in that：Goods shelf pipe fixes dress after described The support column (11) being caught in including arc pressuring plate (10) and one end in T-slot (5) is set, arc pressuring plate (10) is cut with scissors with support column (11) It connects；Afterwards goods shelf Circular tube fixer further include the second T-type screw rod (12) and be threadedly coupled with the second T-type screw rod (12) second The bolt head of handwheel (13), the second T-type screw rod (12) is caught in T-slot (5) inside；Second T-type screw rod (12) and the second handwheel (13) coordinate, arc pressuring plate (10) one end can be compressed.

6. the forward and backward goods shelf workbench according to any one of claim 1-4, it is characterised in that：The crossbeam (2) two Side is symmetrically arranged with rear goods shelf holding device (14), and rear goods shelf holding device (14) is horizontally disposed and length direction and crossbeam (2) length direction is vertical；The top that goods shelf holding device (14) includes pedestal (15) and is threadedly coupled with pedestal (15) after described Tight bar (16).

7. forward and backward goods shelf workbench according to claim 2, it is characterised in that：The preceding goods shelf positioning device (17) include fixing device in the middle part of preceding goods shelf boundary fixing device and preceding goods shelf, preceding goods shelf boundary fixing device and preceding goods Fixing device is both provided with two groups and is symmetrical arranged in the middle part of crotch.

8. forward and backward goods shelf workbench according to claim 7, it is characterised in that：Dress is fixed on the preceding goods shelf boundary Set including goods shelf clamping jaws (18) before first and setting before first goods before first below goods shelf clamping jaws (18) Crotch binding nut (19) and the goods shelf binding nut (19) before goods shelf clamping jaws (18) and first before first Third T-type screw rod (20), third T-type screw rod (20) are threadedly coupled with goods shelf binding nut (19) before first；Third T-type screw rod (20) it is internal that bolt head is caught in T-slot (5).

9. forward and backward goods shelf workbench according to claim 8, it is characterised in that：Goods shelf clamps folder before described first Plate (18) is located at goods shelf holding device (21) before crossbeam (2) side is provided with, and preceding goods shelf holding device (21) includes setting The sliding panel (22) at goods shelf clamping jaws (18) both ends before first, sliding panel (22) are located at before inside is provided with for holding out against The withstanding tight block (23) of goods shelf；Sliding slot (24) is provided in the middle part of the sliding panel (22), before sliding slot (24) length direction and first Goods shelf clamping jaws (18) length direction is parallel；Goods shelf clamping jaws (18) pass through spiral shell before the sliding panel (22) and first Bolt assembly is flexibly connected.

10. the forward and backward goods shelf workbench according to any one of claim 7-9, it is characterised in that：The preceding goods shelf Middle part fixing device includes the second pressing plate (25) and third handwheel (26) below the second pressing plate (25) is arranged and runs through the 4th T-type screw rod (27) of two pressing plates (25) and third handwheel (26), the 4th T-type screw rod (27) connect with third handwheel (26) screw thread It connects；It is internal that the bolt head of 4th T-type screw rod (27) is caught in T-slot (5).