Expanding positioning jaw assembly and single-drive two-way expanding positioning device

Abstract

An expansion positioning jaw assembly and a single-drive two-way expansion positioning device. The expansion positioning jaw assembly includes a lower support plate, a second cylinder, a first jaw, a second jaw, and an upper support plate. A sliding mechanism and a first stop mechanism are provided between the upper support plate and the lower support plate. A sliding block is provided on the upper support plate. The first jaw is arranged horizontally on the front side of the sliding block. A cylinder connecting plate B is provided horizontally on the rear side of the sliding block. The second cylinder is installed on the cylinder connecting plate B. A horizontal guide hole is opened on the sliding block, and a guide shaft is arranged in the guide hole. The guide shaft is respectively matched with the first jaw and the cylinder connecting plate B. The second jaw is matched with the horizontal front side of the sliding block. A through hole is opened on the cylinder connecting plate B, and the sliding block is connected to the piston rod of the second cylinder through a connecting piece. A second stop mechanism is arranged between the horizontal rear side of the sliding block and the second cylinder. The present invention uses a single cylinder to achieve two-way expansion and positioning of the caliper, with a compact structure, shortened caliper positioning time, and improved production efficiency.

Description

Technical Field

[0001] The present invention belongs to the field of assembly tooling for electronic brake calipers, and relates to improvements in the structure and method of the spreading and positioning of assembly tooling, specifically to a spreading and positioning jaw assembly and a single-drive two-way spreading and positioning device. Background Art

[0002] An automotive brake caliper is an important component of an automotive safety and control system, used to control the deceleration, stop, or holding of a wheel in a stopped state, etc. During the installation of caliper components, the position of the caliper body needs to be fixed. Therefore, it is necessary to limit and position the caliper in both the front and rear directions.

[0003] Currently, there are mainly two common positioning measures: One is to use a combination of a servo motor and a cylinder. First, the positioning block is driven by the servo motor to extend to limit the forward movement of the caliper, and then the cylinder pulls back another positioning block to limit the backward movement of the caliper, thereby achieving the two-way positioning of the caliper; the other is to use two cylinders to respectively perform the extending and pulling-back movements of the positioning blocks, corresponding to limiting the forward and backward movements of the caliper to achieve the two-way positioning of the caliper.

[0004] Although the above measures and the systems adopted can achieve the two-way positioning of the caliper, two sets of drive systems need to be used and controlled independently, resulting in a high cost, large space occupation of the system, and a long time cycle for the positioning process of the caliper. Therefore, there are drawbacks in situations with time and space requirements. Summary of the Invention

[0005] The present invention provides a spreading and positioning jaw assembly and a single-drive two-way spreading and positioning device, which are used to solve the problems of large space occupation and long time cycle in the positioning process of the existing caliper positioning tooling, reduce costs and decrease the volume, make the structure compact, convenient for replacement and maintenance, and improve production efficiency.

[0006] In order to achieve the purpose of the present invention, the following technical solutions are adopted:

[0007] The spreading and positioning jaw assembly includes a lower support plate, a second cylinder, and a first jaw and a second jaw arranged side by side. An upper support plate is arranged above the lower support plate. A sliding mechanism and a first stop mechanism are arranged between the upper support plate and the lower support plate. A sliding block is arranged on the upper support plate. The first jaw is arranged on the front side in the transverse direction of the sliding block. A cylinder connecting plate B fixedly connected to the upper support plate is arranged on the rear side in the transverse direction of the sliding block. The second cylinder is installed on the cylinder connecting plate B. A transverse guiding hole is formed in the sliding block. A guiding shaft is arranged in the guiding hole. The two ends of the guiding shaft are respectively matched with the first jaw and the cylinder connecting plate B. The second jaw is matched with the front side in the transverse direction of the sliding block. A through hole is formed in the cylinder connecting plate B, and the sliding block is connected to the piston rod of the second cylinder through a connecting piece. A second stop mechanism is arranged between the rear side in the transverse direction of the sliding block and the second cylinder. The second stop mechanism includes a stop seat D, a stop seat X installed on the sliding block, and a damper arranged on the stop seat X and matched with the stop seat D.

[0008] In order to further achieve the object of the present invention, the following technical solutions can also be adopted:

[0009] For the spreading and positioning jaw assembly as described above, there are two sets of the first jaws, namely the left jaw and the right jaw, and the second jaw is the middle jaw and is arranged between the left jaw and the right jaw.

[0010] For the spreading and positioning jaw assembly as described above, the middle jaw, the left jaw, and the right jaw are respectively installed on one side of the middle fixed groove, the left fixed groove, and the right fixed groove. The other side of the middle fixed groove is fixedly connected to the sliding block. The other sides of the left fixed groove and the right fixed groove are respectively fixedly connected to the corresponding guiding shafts. A bushing is arranged at the part of the guiding shaft located inside the sliding block.

[0011] For the spreading and positioning jaw assembly as described above, the first stop mechanism includes a stop seat B, a stop block B, and a stop seat C. The stop block B is located between the stop seat B and the stop seat C. The stop seat B and the stop seat C are fixedly connected to the lower support plate, the stop seat B is fixedly connected to the upper support plate, and adjusting screws B and C for adjusting the stop distance are respectively arranged between the stop block B and the stop seat B and the stop seat C.

[0012] For the spreading and positioning jaw assembly as described above, the first stop mechanism is arranged on the front side in the longitudinal direction below the sliding block, and a third stop mechanism is arranged on the rear side in the longitudinal direction of the sliding block. The third stop mechanism includes a stop block A and a stop seat A. The stop block A is fixedly connected to the sliding block. The stop seat A is arranged in front of the stop block A and is fixedly connected to the lower support plate. An adjusting screw A for adjusting the stop distance is arranged between the stop block A and the stop seat A.

[0013] The spreading and positioning jaw assembly as described above, wherein the stop seat X is a gantry structure, including two side plates and a cross beam. The lower parts of the two side plates are respectively fixed to the longitudinal sides of the lower support plate. A cross beam is installed between the upper parts of the two side plates. The cross beam is located above the sliding block. The damper is installed in the middle of the cross beam. An adjustment screw D for adjusting the stop distance is provided between the damper and the stop seat D.

[0014] The spreading and positioning jaw assembly as described above, wherein the sliding mechanism includes a guide rail and a slider. The guide rail is horizontally fixed to the lower support plate, and the slider is fixed to the upper support plate.

[0015] The present invention also provides a single - drive two - way spreading and positioning device, including the spreading and positioning jaw assembly as described in any one of the above, a lifting mechanism, a power assembly, and a frame. The lower part of the lifting mechanism is fixed to the frame. The spreading and positioning jaw assembly is driven by the lifting mechanism to move up and down and be positioned. A limit stop mechanism is provided between the lifting mechanism and the spreading and positioning jaw assembly.

[0016] The single - drive two - way spreading and positioning device as described above, wherein the lifting mechanism includes a fixed frame, a cylinder connecting plate A, and a first cylinder. The cylinder connecting plate A is vertically installed on the fixed frame. The side of the first cylinder is connected to the cylinder connecting plate A. The top of the piston rod of the first cylinder is installed with a cylinder extension plate, and the cylinder extension plate is connected to the lower support plate.

[0017] The single - drive two - way spreading and positioning device as described above, wherein the limit stop mechanism includes a stop block Z and a stop column Z. The stop block Z is fixedly installed on the lifting mechanism. The upper part of the stop column Z is fixed to the lower support plate. A limit protrusion for cooperating with the stop block Z is provided at the lower part of the stop column Z.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. The present invention uses a single cylinder to drive the jaws to work, replacing the existing combination of a servo motor and a cylinder or the double - cylinder drive mode, reducing the manufacturing cost of the positioning tooling; compressing the design space, making the structure more compact, facilitating installation and maintenance; and can simultaneously achieve the two - way spreading and positioning of the caliper, shortening the positioning process time of the caliper and improving production efficiency.

[0020] 2. Adjusting screws are provided in each positioning mechanism, which can adjust the stop distance according to the parameters of different caliper products, reducing the design cost, being easy to expand and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic three - dimensional structure of the present invention Figure 1 ;

[0022] Figure 2 is a schematic three - dimensional structure of the present invention Figure 2 .

[0023] The labels in the figure are: 1 - frame, 2 - fixed frame, 3 - first cylinder, 4 - cylinder connecting plate A, 5 - stop block Z, 6 - stop post Z, 7 - lower support plate, 8 - upper support plate, 9 - guide rail, 10 - left fixing groove, 11 - left jaw, 12 - middle fixing groove, 13 - middle jaw, 14 - right fixing groove, 15 - right jaw, 16 - sliding block, 17 - connecting piece, 18 - second cylinder, 19 - cylinder connecting plate B, 20 - stop block A, 21 - adjusting screw A, 22 - stop seat A, 23 - guide shaft, 24 - bushing, 25 - slider, 26 - stop seat B, 27 - adjusting screw B, 28 - stop block B, 29 - adjusting screw C, 30 - stop seat C, 31 - stop seat X, 32 - damper, 33 - adjusting screw D, 34 - stop seat D. Detailed implementation manners

[0024] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0025] It should be noted that for the convenience of describing the structure of the present invention, the left side of Figure 2 is the horizontal front side, corresponding to the positions of the first jaw and the second jaw; Figure 1 the right side of

[0026] is the horizontal rear side, corresponding to the position of the second cylinder 18; in the initial state, the second cylinder 18 is in the extended state, at this time its stroke is the largest, and when the second cylinder 18 retracts, it moves from right to left. Figure 1 、 Figure 2 As shown in

[0027] , a kind of spreading and positioning jaw assembly disclosed in this embodiment includes a lower support plate 7, an upper support plate 8, a second cylinder 18, and a first jaw and a second jaw arranged side by side.

[0028] A sliding mechanism and a first stop mechanism are provided between the upper support plate 8 and the lower support plate 7. The lower support plate 7 is fixed, and the upper support plate 8 can move horizontally along the lower support plate 7 through the sliding mechanism. The first stop mechanism is used for limiting the leftward movement of components such as the first jaw.

[0029] Continue to refer to Figure 1 , a sliding block 16 is provided on the upper support plate 8, and the sliding block 8 is in sliding contact with the upper support plate 16. The first jaw is located on the front side in the transverse direction of the sliding block 16, and a cylinder connecting plate B19 is provided on the rear side in the transverse direction of the sliding block 16. The second cylinder 18 is fixed to the cylinder connecting plate B19. The cylinder connecting plate B19 is fixedly connected to the upper support plate 8. Driven by the second cylinder 18, the sliding block 16 can slide horizontally on the upper support plate 8.

[0030] Under the drive of a single cylinder, in order to realize the separate driving of the first jaw and the second jaw by the second cylinder 18, one end of a guide shaft 23 passing through the sliding block 16 drives the first jaw, and the other end of the guide shaft 23 is connected to the cylinder connecting plate B19; while the second jaw cooperates with the front side in the transverse direction of the sliding block 16. A through hole is opened on the cylinder connecting plate B19, and the sliding block 16 is connected to the piston rod of the second cylinder 18 through a connecting member 17. The connecting member 17 and the piston rod of the second cylinder 18 pass through the through hole of the cylinder connecting plate B19.

[0031] That is, when the cylinder connecting plate B19 and the second cylinder 18 act, the first jaw can be driven through the guide shaft 23. When the piston rod of the second cylinder 18 drives the sliding block 16 to slide through the connecting member 17, the second jaw is driven. Combined with the cooperation of multiple stop mechanisms provided, the caliper is bilaterally expanded and positioned by the first jaw and the second jaw. The specific working process will be described in detail together in the single-drive bilateral expansion and positioning device later.

[0032] A bushing 24 is provided between the inner guide hole of the sliding block 16 and the guide shaft 23 to reduce the wear of the guide shaft 23 and ensure the stability of movement, and extend the service life.

[0033] A second stop mechanism is provided between the rear side in the transverse direction of the sliding block 16 and the second cylinder 18. The second stop mechanism includes a stop seat D34, a stop seat X31 installed on the sliding block 16, and a damper 32 provided on the stop seat X31 and cooperating with the stop seat D34. The second stop mechanism is used for limiting the rightward movement of the second jaw and the like.

[0034] Among them, in this embodiment, the stop seat X31 is a gantry structure, including two side plates and a cross beam. The lower parts of the two side plates are respectively fixed to the longitudinal two sides of the lower support plate 7, and the cross beam is installed between the upper parts of the two side plates. The cross beam is located above the sliding block 16. The damper 32 is installed in the middle of the cross beam. An adjustment screw D33 for adjusting the stop distance is provided between the damper 32 and the stop seat D34. In order to make the structure of the second stop mechanism more compact, the adjustment screw D33 is installed on the stop seat D34, and the body of the damper 32 is installed on the other side opposite to the cross beam and the stop seat D34.

[0035] Such as Figure 1As shown, there are two sets of first clamping jaws, namely clamping jaw left 11 and clamping jaw right 15; the second clamping jaw is clamping jaw middle 13 and is arranged between clamping jaw left 11 and clamping jaw right 15. Clamping jaw middle 13, clamping jaw left 11, and clamping jaw right 15 are respectively installed on one side of middle fixed slot 12, left fixed slot 10, and right fixed slot 14. The other side of middle fixed slot 12 is fixedly connected to sliding block 16, and the other sides of left fixed slot 10 and right fixed slot 14 are respectively fixedly connected to corresponding guide shafts 23.

[0036] As Figure 2 shown, the first stopping mechanism consists of stopping seat B26, stopping block B28, and stopping seat C30. Stopping block B28 is located between stopping seat B26 and stopping seat C30. Stopping seat B26 and stopping seat C30 are fixed to lower support plate 7, stopping seat B26 is fixed to upper support plate 8, and adjusting screws B27 and C29 for adjusting the stopping distance are respectively provided between stopping block B28 and stopping seat B26 and between stopping block B28 and stopping seat C30.

[0037] In the case of setting two sets of first clamping jaws, the first stopping mechanism is arranged on the longitudinal front side below sliding block 16, and a third stopping mechanism is arranged on the longitudinal rear side of sliding block 16. The third stopping mechanism includes stopping block A20 and stopping seat A22. Stopping block A20 is fixed to sliding block 16, stopping seat A22 is arranged in front of stopping block A20 and fixed to lower support plate 7, and adjusting screw A21 for adjusting the stopping distance is provided between stopping block A20 and stopping seat A22.

[0038] As Figure 1 、 Figure 2 shown, on the basis of the above-mentioned expanding and positioning clamping jaw assembly, the present invention also discloses a single-drive two-way expanding and positioning device, including this expanding and positioning clamping jaw assembly, a lifting mechanism, a power assembly, and a frame 1.

[0039] The lower part of the lifting mechanism is fixed to frame 1. The lifting mechanism drives the expanding and positioning clamping jaw assembly to move up and down and be positioned. A limiting and stopping mechanism is provided between the lifting mechanism and the expanding and positioning clamping jaw assembly.

[0040] Continue to refer to Figure 1 , the limiting and stopping mechanism used in this embodiment includes stopping block Z5 and stopping post Z6. Stopping block Z5 and stopping post Z6 are located on the same side. Stopping block Z5 is installed on the upper part of the lifting mechanism, the upper part of stopping post Z6 is fixed to lower support plate 7, and a limiting protrusion for cooperating with stopping block Z5 is provided at the lower part of stopping post Z6.

[0041] Continue to refer to Figure 2The lifting mechanism includes a fixed frame 2, a cylinder connecting plate A4, and a first cylinder 3. The cylinder connecting plate A4 is vertically installed on the fixed frame 2. The side of the first cylinder 3 is connected to the cylinder connecting plate A4. A cylinder extension plate is installed on the top of the piston rod of the first cylinder 3, and the cylinder extension plate is connected to the lower support plate 7.

[0042] In this embodiment, four bushings 24 are respectively embedded in two guide holes on the sliding block 16, and a guide shaft 23 passes through the two bushings 24. Both ends of the two guide shafts 23 extend out of the guide holes and are respectively fixed to the cylinder connecting plate B19 and the left fixing groove 10 and the right fixing groove 14. One end of the connecting member 17 is connected to the piston rod of the second cylinder 18, and the other end of the connecting member 17 is connected to one side of the sliding block 16, fixing the fixing groove 12 on the sliding block 16.

[0043] A stop seat A22 with an adjusting screw A21 is fixed on the left front side of the upper support plate 8, a stop seat B26 with an adjusting screw B27 is fixed on the right front side of the upper support plate 8, a stop seat C30 with an adjusting screw C29 is fixed on the right rear side of the upper support plate 8, a stop seat D34 with an adjusting screw D33 is fixed on the sliding block 16, a stop seat X31 with a damper 32 is fixed on both sides of the rear side of the upper support plate 8, the stop block A20 is fixed on the left side of the sliding block 16, and the stop block B28 is fixed on the right side of the upper support plate.

[0044] The working process of the single-drive bidirectional opening positioning device of this embodiment is as follows:

[0045] In the initial position, the second cylinder 18 is in an extended state driven by compressed air, and restricted by the stop seat A22 and the stop seat C30, the left clamp 11, the middle clamp 13 and the right clamp 15 are all in a closed state.

[0046] The power assembly provides compressed air through the air pipe to drive the first cylinder 3 to rise, and the stop column Z6 is restricted by the stop block Z5 to position the open positioning jaw assembly in the height direction.

[0047] The compressed air drives the second cylinder 18 to retract. During the retraction of the second cylinder 18:

[0048] First, the second cylinder 18 drives the sliding block 16 to move through the piston rod and the connecting piece, so that the adjusting screw D33 contacts the damper 32, and the second cylinder 18 retracts to generate resistance. At this time, the retraction stroke of the second cylinder 18 is not yet full;

[0049] Secondly, since the relative positions of the sliding block 16 and the stop seat X31 are fixed, the second cylinder 18 moves forward under the action of the relative force. The second cylinder 18 is fixedly connected to the cylinder connecting plate 8, and the cylinder connecting plate 8 also moves forward. Since the left jaw 11 and the right jaw 15 are fixed in position relative to the upper support plate 8, the upper support plate 8 moves horizontally forward above the lower support plate 7, and the left jaw 11 and the right jaw 15 move forward. When the stop block B28 is restricted by the adjusting screw B27, the forward movement of the left jaw 11 and the right jaw 15 ends.

[0050] Thirdly, at this time, the retraction stroke of the second cylinder 18 has not reached the full stroke yet. The adjusting screw D33 on the stop seat D34 overcomes the resistance of the damper 32 and moves the sliding block 16 backward until the adjusting screw D33 and the damper 32 are in full contact and stop moving, and the backward movement ends.

[0051] Since the position between the middle jaw 13 and the sliding block 16 is fixed, during the above process, the middle jaw 13 moves backward until the adjusting screw D33 and the damper 32 are in full contact and stop.

[0052] Up to this point, the second cylinder 18 drives the left jaw 11, the right jaw 15, and the middle jaw 13 respectively to achieve single-drive two-way expansion and positioning of the caliper.

[0053] In addition, the first cylinder 3 and the second cylinder 18 as power components can also be an electric lead screw or a hydraulic cylinder, etc. For the specific specifications, materials, etc. of each component in the present invention, the drawings in the specification are used as the drawings, and are implemented according to the proportions and cooperation methods of each component in the drawings of the specification. When manufacturing, the corresponding connection methods, the thickness and strength of the connection points can be selected according to the actual connection strength requirements without creative work.

[0054] It can be understood that although the embodiments of the present invention have been described, for those skilled in the art, various changes, modifications, substitutions, and deformations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0055] The technical content not described in detail in the present invention is all well-known technology.

Claims

1. The spreading and positioning jaw assembly includes a lower support plate, a second cylinder, and a first jaw and a second jaw arranged side by side. Characterized in that, An upper support plate is arranged above the lower support plate. A sliding mechanism and a first stopping mechanism are provided between the upper support plate and the lower support plate. A sliding block is provided on the upper support plate. The first jaw is arranged horizontally on the front side of the sliding block. A cylinder connecting plate B fixedly connected to the upper support plate is arranged horizontally on the rear side of the sliding block. The second cylinder is installed on the cylinder connecting plate B. A horizontal guiding hole is opened on the sliding block. A guiding shaft is arranged in the guiding hole. The two ends of the guiding shaft are respectively matched with the first jaw and the cylinder connecting plate B. The second jaw is matched with the horizontal front side of the sliding block. A through hole is opened on the cylinder connecting plate B and the sliding block is connected to the piston rod of the second cylinder through a connecting member. A second stopping mechanism is arranged between the horizontal rear side of the sliding block and the second cylinder. The second stopping mechanism includes a stopping seat D, a stopping seat X installed on the sliding block, and a damper arranged on the stopping seat X and matched with the stopping seat D.

2. The spreading and positioning jaw assembly according to claim 1, Characterized in that, There are two sets of the first jaws, namely the left jaw and the right jaw respectively, and the second jaw is the middle jaw and is arranged between the left jaw and the right jaw.

3. The spreading and positioning jaw assembly according to claim 2, Characterized in that, The middle jaw, the left jaw, and the right jaw are respectively installed on one side of the middle fixing groove, the left fixing groove, and the right fixing groove. The other side of the middle fixing groove is fixedly connected to the sliding block. The other sides of the left fixing groove and the right fixing groove are respectively fixedly connected to the corresponding guiding shafts. A bushing is arranged at the part of the guiding shaft located inside the sliding block.

4. The spreading and positioning jaw assembly according to claim 1, Characterized in that, The first stopping mechanism includes a stopping seat B, a stopping block B, and a stopping seat C. The stopping block B is located between the stopping seat B and the stopping seat C. The stopping seat B and the stopping seat C are fixed to the lower support plate. The stopping seat B is fixed to the upper support plate. Adjusting screws B and C for adjusting the stopping distance are respectively arranged between the stopping block B and the stopping seat B and the stopping seat C.

5. The spreading and positioning jaw assembly according to claim 4, Characterized in that, The first stopping mechanism is arranged on the longitudinal front side below the sliding block. A third stopping mechanism is arranged on the longitudinal rear side of the sliding block. The third stopping mechanism includes a stopping block A and a stopping seat A. The stopping block A is fixed to the sliding block. The stopping seat A is arranged in front of the stopping block A and is fixed to the lower support plate. An adjusting screw A for adjusting the stopping distance is arranged between the stopping block A and the stopping seat A.

6. The spreading and positioning jaw assembly according to claim 1, Characterized in that, The stopping seat X is a gantry structure, including two side plates and a cross beam. The lower parts of the two side plates are respectively fixed to the longitudinal two sides of the lower support plate. The cross beam is installed between the upper parts of the two side plates. The cross beam is located above the sliding block. The damper is installed in the middle of the cross beam. An adjusting screw D for adjusting the stopping distance is arranged between the damper and the stopping seat D.

7. The spreading and positioning jaw assembly according to claim 1, Characterized in that, The sliding mechanism includes a guide rail and a slider. The guide rail is horizontally fixed to the lower support plate, and the slider is fixed to the upper support plate.

8. Single-drive bidirectional expanding and positioning device, Characterized in that, it includes the expanding and positioning jaw assembly as described in any one of claims 1-7, a lifting mechanism, a power assembly and a frame. The lower part of the lifting mechanism is fixed to the frame, and the expanding and positioning jaw assembly is driven by the lifting mechanism to move up and down and be positioned. A limiting and stopping mechanism is provided between the lifting mechanism and the expanding and positioning jaw assembly.

9. The single-drive bidirectional expanding and positioning device according to claim 8, Characterized in that, the lifting mechanism includes a fixed frame, a cylinder connecting plate A and a first cylinder. The cylinder connecting plate A is vertically installed on the fixed frame, the side of the first cylinder is connected to the cylinder connecting plate A, the top of the piston rod of the first cylinder is installed with a cylinder extending plate, and the cylinder extending plate is connected to the lower support plate.

10. The single-drive bidirectional expanding and positioning device according to claim 8, Characterized in that, the limiting and stopping mechanism includes a stopping block Z and a stopping column Z. The stopping block Z is fixedly installed on the lifting mechanism, the upper part of the stopping column Z is fixed to the lower support plate, and a limiting protrusion cooperating with the stopping block Z is provided at the lower part of the stopping column Z.

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